You have captured a great moment here! I like the low perspective of the shot but the tree in the background is a bit too distacting for me, it keeps drawing my attention away from the bucks.
7 - Good capture. Criticism; difficult as obviously opportune and likely from quite a distance, but.. 'sharper' (which I'm sure you're well aware), make this even better in my opinion. Perhaps a slightly tighter crop at the bottom, not sure, 'works' well as is.
Perfectly fits the challenge and good composition. A shame that overall the focus looks a bit soft, particularly in the foreground, otherwise this would have been a top top image. It has a lot going for it though and I hope it scores high.