Shoe Diagram How Can I Make A Real Looking, 3D Running Shoe Cake? Diagrams And Patterns Anyone?!?

How can I make a real looking, 3D running shoe cake? diagrams and patterns anyone?!? - shoe diagram

I want to make a cake for running shoes, I need all the help they can get it, I feel Gumpaste, but some tips and ideas, drawings, sketches ... not help because it was my first cake running shoes.