You've got a point there. What I'll be doing is using much larger tiles for the grass to give it more variation, and work on some dirt and long grass to provide more variation. One thing that I'm really trying to avoid in this game is predictability when it comes to the tiles, as is evident with the rock cliff. I'll post an update when I've got a good thing going on. 
[Removed, check back later]
Holy crap this is taking me forever.
Only got the head done. Still got to finish up the body. 16 colors.
[Removed, check back later]
Holy crap this is taking me forever.
Only got the head done. Still got to finish up the body. 16 colors.