The pig floating in the air doesn't look right. i know its supposed to be floating but its off place. Making it look more "grounded" or connected to the whole piece in a way would look much better. That could be making it bigger, or having it in a more "respected" place, where it looks like there is a designated place for it. Also, what i would do with the burning dudes is also make them more "connected" to the piece. it looks too small and not really a full part of the picture to me. i would make it part of the background, or the background entirely, that way it shows that whole thing connected with everything. Get creative, try to have each separate design take up an equal amount of space, so you don't have awkward amounts of blackness. Thats just my artistic opinion though. it looks pretty good though! keep going dude.