Your background work and tiling never ceases to amaze me, Vierbit. The colors are so bright, and vibrant, which really make the game look fun. I especially like the design of the goofy king in the hockey mask, and the realistic flash on the golden coin. One strange issue I see, however, is dealing with the animated sprites. Mainly the Vulture. It seems as it's wings aren't flapping naturally. Rather than the whole wing flap in unison with all it's bones, like a normal bird, this one flaps it's wings and bends towards the middle kinda' unnaturally; like it's punching it's stomach. I don't know, just thought I'd bring it up.
Everything else is spot on, though. Seriously, POST MORE ART, PLEASE. (heh)