diff --git a/_share/media/img/step_02/lesson_04/ex01a.png b/_share/media/img/step_02/lesson_04/ex01a.png
new file mode 100644
index 0000000..0a8283f
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex01a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex02a.png b/_share/media/img/step_02/lesson_04/ex02a.png
new file mode 100644
index 0000000..cc97ebf
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex02a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex02b.png b/_share/media/img/step_02/lesson_04/ex02b.png
new file mode 100644
index 0000000..b649a39
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex02b.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex03a.png b/_share/media/img/step_02/lesson_04/ex03a.png
new file mode 100644
index 0000000..43b7b78
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex03a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex03b.png b/_share/media/img/step_02/lesson_04/ex03b.png
new file mode 100644
index 0000000..f8e6c5e
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex03b.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex03c.png b/_share/media/img/step_02/lesson_04/ex03c.png
new file mode 100644
index 0000000..1c83e49
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex03c.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex03d.png b/_share/media/img/step_02/lesson_04/ex03d.png
new file mode 100644
index 0000000..86269df
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex03d.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex04a.png b/_share/media/img/step_02/lesson_04/ex04a.png
new file mode 100644
index 0000000..a8e9ae8
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex04a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex04b.png b/_share/media/img/step_02/lesson_04/ex04b.png
new file mode 100644
index 0000000..a8e9ae8
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex04b.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex05a.png b/_share/media/img/step_02/lesson_04/ex05a.png
new file mode 100644
index 0000000..af045f2
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex05a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex05b.png b/_share/media/img/step_02/lesson_04/ex05b.png
new file mode 100644
index 0000000..469881e
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex05b.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex05c.png b/_share/media/img/step_02/lesson_04/ex05c.png
new file mode 100644
index 0000000..6ab2399
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex05c.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex06a.png b/_share/media/img/step_02/lesson_04/ex06a.png
new file mode 100644
index 0000000..a135895
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex06a.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex06b.png b/_share/media/img/step_02/lesson_04/ex06b.png
new file mode 100644
index 0000000..78ee5b2
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex06b.png differ
diff --git a/_share/media/img/step_02/lesson_04/ex06c.png b/_share/media/img/step_02/lesson_04/ex06c.png
new file mode 100644
index 0000000..b5e5e5e
Binary files /dev/null and b/_share/media/img/step_02/lesson_04/ex06c.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex01.png b/_share/media/img/step_02/lesson_05/ex01.png
new file mode 100644
index 0000000..22ec26c
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex01.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex02a.png b/_share/media/img/step_02/lesson_05/ex02a.png
new file mode 100644
index 0000000..daa3c34
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex02a.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex02b.png b/_share/media/img/step_02/lesson_05/ex02b.png
new file mode 100644
index 0000000..c9c1737
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex02b.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex02c.png b/_share/media/img/step_02/lesson_05/ex02c.png
new file mode 100644
index 0000000..92028b9
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex02c.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex03a.png b/_share/media/img/step_02/lesson_05/ex03a.png
new file mode 100644
index 0000000..f7e705e
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex03a.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex04a.png b/_share/media/img/step_02/lesson_05/ex04a.png
new file mode 100644
index 0000000..ec63b17
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex04a.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex05a.png b/_share/media/img/step_02/lesson_05/ex05a.png
new file mode 100644
index 0000000..fe09e6c
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex05a.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex05b.png b/_share/media/img/step_02/lesson_05/ex05b.png
new file mode 100644
index 0000000..deada9e
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex05b.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex06a.png b/_share/media/img/step_02/lesson_05/ex06a.png
new file mode 100644
index 0000000..0598c34
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex06a.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex06b.png b/_share/media/img/step_02/lesson_05/ex06b.png
new file mode 100644
index 0000000..be31fd1
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex06b.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex06c.png b/_share/media/img/step_02/lesson_05/ex06c.png
new file mode 100644
index 0000000..869b48e
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex06c.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex06d.png b/_share/media/img/step_02/lesson_05/ex06d.png
new file mode 100644
index 0000000..22a6fc1
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex06d.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07.png b/_share/media/img/step_02/lesson_05/ex07.png
new file mode 100644
index 0000000..4fbb0be
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07b.png b/_share/media/img/step_02/lesson_05/ex07b.png
new file mode 100644
index 0000000..f70b5db
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07b.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07c.png b/_share/media/img/step_02/lesson_05/ex07c.png
new file mode 100644
index 0000000..158a353
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07c.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07d.png b/_share/media/img/step_02/lesson_05/ex07d.png
new file mode 100644
index 0000000..df6d513
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07d.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07e.png b/_share/media/img/step_02/lesson_05/ex07e.png
new file mode 100644
index 0000000..36733ce
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07e.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex07f.png b/_share/media/img/step_02/lesson_05/ex07f.png
new file mode 100644
index 0000000..5d1b620
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex07f.png differ
diff --git a/_share/media/img/step_02/lesson_05/ex08.png b/_share/media/img/step_02/lesson_05/ex08.png
new file mode 100644
index 0000000..a536ac1
Binary files /dev/null and b/_share/media/img/step_02/lesson_05/ex08.png differ