Looks great! Only thing I'd say is the gold items are very yellow! I know they're yellowy in minecraft but I think you've gone for too light of yellow and it doesn't make me think gold.

Your bricks are pillow-shaded, tha tis, you've "shaded' by adding darker pixels around all the edges, instead of thinking about the 3D form of the bricks and where light would and would not reach. The inner edges of the bricks presumably stick out, but your shadows make them look like they're gashes into the brick.