I love the skillful use of the blur tool in this piece! The lighting is very well done too. What did you use? An overlay layer effect and some yellows and reds? It looks fantastic. Character-wise, even if someone was unaware of her background, you can tell by Paint's expression that she's up to no good (turning others into Halloween creatures and whatnot) yet she seems very satisfied with her work. The title really helps with that. If you were to add a background, what would it have been?