First of all, it's a great start! And if you did this all today, holy moly you work fast
Before you go any farther though, there's an issue you need to address: perspective. It's not 3/4 top down, at least the mouth isnt... The bottom half looks 3/4 but the mouth looks like I'm looking at it from the side, very awkward. I personally find the palette too green for my taste, I'd go more yellow/golden brown. I like how you've given the eye such potential for animation though, Id love to see it follow Link around a room!
Yeah, I did this today. but to be fair I'm using the 3D model as a reference (however the textures are completely messed up).
I'm actually going to make Bellum rotate on the X, Y and Z axis, 8 directions for each, so the 3/4 top down would be one of the angles
All of these of course with 3 states, eye/mouth open, semi open, closed. It's going to take a while
