Too much smudging in the back of the shoe and the front seems to just cut off.
Colors are a bit off in the BG, try picking two main colors from the render or focal and going to Filter>Render>Clouds and use that as a starting background.
I never got this C&C'd.
Shoe is a little bit blurry, Just took a picture on a phone and saw what I could do with it.
Too much smudging in the back of the shoe and the front seems to just cut off.
Colors are a bit off in the BG, try picking two main colors from the render or focal and going to Filter>Render>Clouds and use that as a starting background.
At the end tip of the shoe, its just a cut off, like a line. o.o