Messed up Graphics

I have been thinking about this for a while. I realized that the graphics doesn't look that sharp on the game, especially the model, colors and lighting doesn't seem right. Here is some notes that I think might help:

1. Use more vibrant colors. The current greyish, darkish color doesn't seem to work
2. Use ambient lights. I wanted to have large contrast, but I think the constrast is just way too much without any ambient light
3. Fix those problems. I still have problems with shadows etc. Maybe I just shouldn't use it. But still, it's better to fix it.

There might be other stuff I can do but these are what I can think of right now.