Check out the dark and creepy artwork of iregret, a Japanese artist that so far is pretty unknown, or at least I haven’t been able to dig anything up about him. Trying to translate his writing with Babelfish also wasn’t very fruitful. I do know the image at top has something to do with nose water, but that’s not very helpful.
Overall his pieces have an extreme realism, but they’re always moody, even if they’re splashed with colors all over them. Really brilliant stuff. Here’s a link to his blog as well where he has more work.