Hello Matthew,
I must say the quality of feedback here has been outstanding. I took a look at your website, very inspirational work. So how did you go from doing political science to product design? 
As for Sketchbook Pro, what a program.
Tarenne Baptiste does a great job presenting work, he even designs football boots or should I call them soccer boots?
You also did a great job presenting footwear design I see with the Nike ARKTIKA design.
Definitely going to push this beyond a mere styling and graphic design exercise, I actually have a couple of ideas for how boots can give players an edge over opposition. Hints, zebra and hexagon chain.
Thanks for your input, Matthew