Just as like almost every other picture. I am not familiar with the source. So I did some research on how the chracter looks and such.
Well i recognized him of the pictures so that is a well done job. But what I noticed was that he wore a suit and a tie. I can understand in the version you made it's not that clear visible but if you look closely you can see the tie. I discovered this as I looked at his action figure.

(not going to show the tv/movie screenshot since it is kinda gross)
Also I really would have loved to see the head cake. I think you would be able to do that if you used the glasses mask that covers a big part of the face. Colour it in skin colour, add some hair extensions to it and add the candles.
Good luck with your other contests