RTF is a global modification that replaces all towns in the game.

Indeed, the floor contrasts too much – the unnaturally perfect white tiles need some kind of shade – perhaps a slightly grayish (or sandy-yellow) hue. There's a certain unnaturalness in the color scheme, but the yellow domes, which add warm tones, certainly help. I'm not suggesting that we should smear the walls with dirt and mold :D, but in my opinion, a little more naturalness in the colors wouldn't hurt.