A lot of neat stuff here, mate. Good work.
Now, for some requested criticism- on the third guy, his hands are too large imo, I mean. they're huge. They look great though, otherwise. Oh, and I don't like yellow lighting on black, but that's personal opinion.
Some of them are also a tad blurry. For instance the large one with background and a flying castle in the far.
Anyway I shouldn't complain about proportions because you obviously went for a comic-ish style, where the standard is huge shoes and large hands.
