Aw, this is darling! I've been trying to get more adventurous with my carving but I still can't figure out how people do that half carving thing, like you did for his hat... Just awesomeness.
I wasn't sure how people did it either, but I just took the tip of a potato peeler, kinda just improvised with what we had laying around in the kitchen, this is the first time I've really done anything cool with my pumpkins xD
Very good job carving!!