Like the idea and in the right light it looks good. However, the dog appears to be silhouetted with a darker black (this doesn't run completely around the dog) to the rest of the frame. I hope this makes sense.
I'd have been tempted to try and remove the grren band from the right hand side as I find it slightly distracting, it may be this monitor but the whole image does appear to be noisy.
This month's competition theme is 'Movement' which can be interpreted in a number of ways. You could photograph an animal running, a person walking or a car speeding...