Dante is pretty good, if not, one of the best pixel artists here in the web. If you ask for specifics and details he will do his utmost best to meet your needs.
He's affordable, quick, and his works are on par with industry leading games (I'm not joking)
some of his examples can be seen in my small game at @storyofrevere on twitter
consider hiring him for his services, I wholeheartedly recommend it.
