Nice, love the lighting in this one but would've liked the tip of the shoelace to be in focus, too (probably close to impossible with the camera that close).
The shoe is almost blending in with the dark shadow...maybe if you could have made a positive negative take on this just brown and black somehow would've improved it a great deal in my opinion
Clever idea. I think either more of the shoe in the shot or a shoe in a different color than the bkgrd would make it better. I want more shoe! Like the perspective though.