Thanks a ton, Huw! The list of artists on this one is long indeed, but I've been coordinating everything and bringing it all together. Phil and I are the only two who have done custom art specifically for this game, but there's hundreds of artists who've provided commodity art (for a fee) that I've adapted and used.
I think a lot of it boils down to taste, and especially the fact that no other game really looks like this one; for good or ill, depending on who you ask, this game doesn't really look like any other game. Personally, I'm really pleased with how it's shaping up, too -- prior to the switch to side view I was never really satisfied with how things were coming together, but since that shift I've been really pleased with how things have just all of a sudden gelled.
And yeah, I love it with vysnc also. The only reason it isn't on by default is because folks with weaker graphics cards will see a framerate drop that is pretty substantial from enabling that.