I think this is probably a man and woman... but the peeling polish makes it a father and little girl for me. I like it better this way. :)
I like the 'realness' of it... the dirty fingers and the peeling polish. That's life... right there in your image.
Fantastic detail and lighting. My only minor complaint is this doesn't feel intimate. To me they look more like there bracing against each other and pushing away than reaching out to touch each other.