Nemz, there's a small problem with the Chill Penguin textures. The slope tiles could be difficult to use because one would need to make a slope angle in which the texture looks right. Usually, mappers just make the slope and don't mind the cutoff texture. They're a nice addition, but seem impractical to use. All of the tileset looks neat, though.
Well, it's really up to mappers whether they'll use the tiles or not, but yeah. Just saying.