Gotta be honest, I don't really care. If it were "realistic" it would be just another game. This is The Legend of Zelda. It's not about convincing a bunch of idiots who just want the same rubbish shovelled down their throats time and time again. You can't compromise the integrity of such a series as Zelda for that.
Edit: Zelda is a series that thrives off colour. I'm glad they didn't go with the "dark" approach. Every single other game right now uses a palette of brown and greys. I really love the rich greens of the scenery and the blue of Link's tunic. You just don't see that enough in games.