Learn The Adobe Creative Suite
How do I create my renderings? Another great and oft-asked question. I use Adobe Illustrator and Adobe Photoshop. If you are going to have almost any creative career nowadays, you need to know how to use this suite of programs. Is it expensive? Yes it is. But it is an investment in your future (and if you have a good accountant it's a tax write-off). You should learn both programs like the back of your hand, but most importantly you need to learn Illustrator. That program is your lifeline to having sample shoes made. I started using Photoshop my sophomore year in high school. I now know seventh graders using it. Get the Adobe Creative suite yesterday.