^What he said.
This is kind of off-topic now though, of course, as it is merely concerning the RTP rather than actual mapping itself. Looking at the screenshot Marcus posted, for example, they are more like tiles that resemble hills and grass in a cartoony fashion, rather than actually looking like a natural mount/woods and whatnot; be them well mapped or not. A lot more video game-ish, and a lot more light hearted. All comes down to personal preferences, of course. Personally, even with the well mapped VX RTP ones posted there, I still prefer a well mapped XP RTP instead.
Surely VX RTP can be a good thing in many cases depending on the type of game, of course. It is just pretty hard to go "NUUUUUUU! WHY?!!11 TAKE ME INSTEAD WAH WAH WAH *emo tears flooding*" with it. Not that the XP RTP is overly good for that either of course, but it's relatively more flexible as far as scenario and atmosphere goes.
Of course, you can always transfer XP graphics and custom graphics over, so I'm simply saying that for the default VX RTP mapping.