nice idea, but i guess you were hoping no one would notice the 'motion blur'...
i know it's tough to throw these images away, especially when something like this just jumps up right in front of you. but, if you really want to get good, you need to do two things: 1) practice, practice, practice, practice, so that when you have opportunities like this, you can respond quickly and correctly, and 2) delete and move on when you don't get it. it's ok to keep some of them just for the sake of keeping them, but if you care about your scores, don't enter them into challenges without reading the descriptions carefully...
Uh-oh. Fun to look at but you're going to get some big hits on meeting the challenge by stopping the motion and no motion blur trails, etc... I like the placement of the deer in the frame, that's good standard composition for a moving subject to leave space in front. Exposure is good. Good luck in the challenge.
The composition is good with the deer running into the frame and I always like the blur effect associated with panning but the deer is just not sharp enough.