- I like the painted look and the protagonist is CUTE.
- Please don't use tank controls. I much prefer motion relative to the camera facing instead.
- Use a blend tree in your characters controller that interpolates the speed of the walk animation to get really smooth feeling with the analog stick. This can be made to look especially good if you are using root motion. In this case its really important to implement a faster stopping deacceleration.
- You can solve your camera clipping issues by checking for open space with a raycast from the character to the camera and then confining the camera to that open space. Maybe starting with checking out what the standard asset packages have available would be good.