Djipi, I would add a shadow to where the mouth hole is, as you would get a shadow there, also, that ocarina icon, the colour is fine, but the black shadow looks odd, I think you should keep all the shadows the same for the items...
I'm still working on the sky, I have an idea I am going to try out, I have found a good way to make the sky look like its 3d in the distance, so i am working on that.