Step 1
Place this picture in Illustrator
go to object menu and look it and at the working you can use transparency tool value for draw your art work
Step 2
It is very important to draw any object in illustrator to get some color from the object, select Eyedropper tool to pic some color from the abov picture.
These are color which I use in making shoes
Then these are all step one by one draw and make a shoes
(Note:Mesh tool is very important to make a details in particular object)
Its Final output of showes
