Alrighty then, here's some crits for this as well.
It's a bit difficult to judge tilesets like this, you'd really have to build a small map so it'd be easier to see how all the tiles work together. No matter how good a single tile is, it's irrelevant if it doesn't fit in with the rest.
The monsters seem really two dimensional and too much seen from side view for something that's supposed to be either a Zelda -like view or an Ultima 5 -like view. Zelda -like, I'd guess.
Hue shift will always helps graphs like these.
The walking animation would be nice to see animating to get a better idea.
The tree's trunk seems totally flat, whereas the top seems like it's button like, a flat area rising above the background. Studiyng real life references and examples from other similar games would help a lot.