If the foot and the shoe print were intended to be the point, then you should have cropped in on just that. It took me quite a while to get this because of all the other distracting elements.
I love everything about this except those green bars! They are very unfortunate, but a great idea and love the colors, angle, and composition for the most part. 5
No, the first shoes were probably animal skins or palm leaves. You are already aware that opting out of the theme-wear is costly, but I applaud your independent attitude. Sort of like the first human to keep an actual fire in his cave. (He probably wore skins for shoes) As to your work here. It is chaotic, random and unenlightening. A photograph, like a great teacher, should either 1. Educate 2. Entertain 3. Reflect an emotion or 4. Call in recall to the viewer. This does none of those things. It is the book report of a student who put off the work for too much time and settled for writing from Cliff's notes. 4.
I think the title might be more effective if the foot were on grass and not 20th century concrete. The idea is good, but I think you could have executed it a bit better in a natural and not man-made environment.