I love the message and your model's pose. I agree that the white background does make it look like he's in a world of his own. Is he reading anything particularly significant? It looks like fairly old or well loved book.
I love the incongruity of this image - here we are presented with a lush, long beautiful man lying naked - and is he being seductive, no he's reading - wow. I'd love to crawl inside your mind and find out where you get your ideas.