Gabriele Pennacchioli is an animator, story artists and designer at DreamWorks. On his blog you'll see a lot of nice character scenes drawn on tanned background. Visit gabrielepennacchioli.blogspot.com to see more of his work.
Erwin Haya has some pretty cool art with amazing line art and colours on his blog. There are also plenty of simple but stylish portrait drawings. You can check out his work at onesickindividual.blogspot.com.