Seriously though, good stuff. I like the silver one the most, though I'm not entirely sure why you don't apply all different varieties to each version. You'd up the variety immensely. Oh yes, the X on the second chest does not seem to follow the shape of the chest itself.
Also, I think the coins could use some contrast, especially in the pile. All of them just sort of blend together. Could also use a bit more shine in some areas.
