Whoa! Creepy!!! Nice.... The only thing I watch out for in montages is getting the light right through all the images (judicial use of dodge & burn tools sometimes) and that's partly the only thing I'd change so far here - the hand itself isn't straight, but the shadow it appears to cast to the right of it is. See how your shadows on the fingers follow? Once it goes up the side of the hand / wrist it's just a block - match this shadow to the hand shape and it'll be a cracker!!!! (",)