I've exhausted my talents, as I am a programmer and only rarely have dabbled in pixel art, so any comments or criticisms would be of great use.
I have the most issues with color. I am finding it hard to find colors that have enough contrast with the bird and still look good. I'm not as concerned with composition because I'll be moving things around anyways when making the game.

Things I like that I did: The trees, the bird, the mushrooms, and the grass.
I'm open to any ideas, even crazy ones.
EDIT:
A little about my project... This will play like a platformer, but I don't want to restrict myself to using a tileset and want things to be a little more organic. In conjuction, I don't really mind having a large number of colors in the art either, but I am not really skilled enough to where it would make a difference if I used a lot more colors. I would love it if I could make the whole thing look kind of wooden and toy-ish.
In this image, the water wheel would be turning and the bird can interact with it. Water will be flowing onto it from the right, but I have not drawn that yet.