Marvelous. I would have liked a little more variation in the hands, but this is a nice, solid concept. Technically, where the wrist meets the sand is not very convincing...
I like the shadows in this shot, adds a feel of reality to the shot to me. The sky seems perhaps a bit dark to produce those shadows, but that adds to the Surreal feeling I think. The eyes in the hands was really well done and this was one of my favorites of the challenge.
This is just plain weird.. LOL
The eyes and how it was blended just works and I like your choice of the black and white. I think color would have totally thrown the photo off. well done.