One common mistake almost everyone makes with 3/4th top down perspective sprites is they always design them looking towards the camera. Biggest thing to remember is that the sprite doesn't want to always look up, they want to look forward.
Few crits- I think the only really usable parts on the sprites are the torsos. the arms look a bit odd, but I think they're workable. Otherwise, the heads are way wrong; they're way too high up, and they're facing the camera, instead of forward. The legs in comparison to the shadow appear to be way behind the gorons, making me wonder how they're standing up at all without gravity throwing them downward.
Shading seems alright, though you have some aliasing issues in the head that makes things look a bit awkward as well.