Greetings from the Critique Club. I think you have done well with this entry. I love the focus and the whit background. I generally dont like centering, but it really seems to work well here. The border also adds to the photo. I think the score represents real well your efforts here.
Things that might have improved on. I think having the whole reflection in the foreground would have increased the score on this shot quite a bit. I also think that a little more light on the front of the boot would have accented it a little more. I also wonder what a leg in the boot might have done for it. Overall well done in a pretty high scoring challenge. Respectable finish.
Is the reflection the point of your image or the shape? This has the making of a really great fashion product shot with just a little bounced light onto the texture of the boot