Beautiful design! From an evolutionary standpoint your alien-apes look like they could belong on Pandora. More plausable than the Navi really. Many of the Pandoran vertebrates had an extra set of eyes in the movie.
This reminds me of a certain species from the movie Avatar, but these creatures are much more detailed. The texture of their skin and of the background is superb and the creatures themselves are stunningly creative. Wow!