I get the idea, but it feels like you went a bit overboard with the "MIx" - it's coming across as cluttered IMO. Some bounced fill light would help reduce the shadows some, and just a bit more contrast might help as well. All JMO of course. :D Good luck in the challenge.
The set up is pretty good - but I think it just seems so forced with all the stuff in the image - especially wih the individual writing on a piece of paper that is under a book on a page that is already filled up. In addition, the lighting is a little flat - it needs more contrast and better color adjustment to make the apple etc.
I like the shot, and the way you have laid it out, but the hand with the pen, looks out of place on a page that looks full, and is half covered with a book.