Looks gorgeous, but is there more to it than climbing monsters? I assume that defeating them is sort of a puzzle. Not necessarily bad, but the visual scope of the game seems a lot more impressive than the gameplay scope. Sorry for the Zelda comparison I'm about to make, but this is one case in which it's apt. Zelda has probably the broadest scope of gameplay of anything out there. I mean, you have combat, puzzles, exploration (sometimes with transportation), mini-games, NPC's, stats (as in hearts and magic), money, items (as in bombs and arrows), and often a lot more depending on the game (masks, time, music).
I'm not saying this will not match up to Zelda, as scope isn't everything. I'm just saying this seems more like a graphics-based game, sort of like Outrun 2 SP (gorgeous but with a tiny scope that makes for a short experience). I only bring this up because I hate when good games are really short like Ico and Beyond Good and Evil (a similar situation, IMO). I also bring it up in defense of Zelda, as people often fail to see how unusually large those games are. That said, Wanda and the Colossus is trying something unique, which is more than most games can do.