Thats definetly not it, the area was quickly made to get a feel of what I wanted to do with the tileset, not to spend half an hour making walltiles look suitable. I never really notice that kind of tiling issues anyways, does it detract that much? I always feel if you're playing a game and notice the wall tiles don't perfectly tile, then the game really isn't all that fun.
The former part also applies to the waterfall.

Never noticed that actually.

Rabbits don't run around shooting turtles, whats yer point?