#26 - A little too dark I imagine would translate well on t-shirts.
#25 - Much more eye catching than the first iteration, I think. Any thoughts on adding more definition to the middle of the shoe's outline to make it even more identifiable?
#24 - Much more my style and I'm going to think on any additions that might improve the concept. Angles are still a little sharp for my liking so let me know if you've got any other ideas.
#35 looks a little incomplete #33 Is a strong one, though I'm not so sure about how the center has been filled in (which I know is per my request). It seems a little cluttered. Though I like the font better than in #27.