One of the coolest interpretations of the book in the movie is this scene. The book does mention that snakes came out of the water and hurry the fellowship inside the mines of Moria, but Peter Jackson took it a step further and made the snakes arms of a two ton octopus that is hungry. This snotted vig was super fun to make. Lord of the Rings Rocks! Enjoy!
If you are going to build Silmarillion MOCs, I would suggest using Ted Nasmith's artwork as reference for it. He has some pretty good paintings (including an epic one of Ulmo talking to Tuor on the beaches near Vinyamar in Nevrast).
I have only read through the series as a whole once, though I do read my favorite parts over and over. I read The Silmarillion over the summer and thought the mythology was fascinating! I should be posting some Sil. Mocs soon.
Glad to have been of assistance. I am a fanatic fan of the books. Must have read/listened to them about 20 times or more in the course of four or five years (that and I have a copy of the Reader's Companion for the LotR, so I study them pretty in depth). I always learn something new about Tolkien's writings.
A good representation of the scene. Your characters are well built. Only one detail bothers me. You said that "Peter Jackson took it a step further and made the snakes arms of a two ton octopus." Fact is, that is a little bit confused. Jackson never took it a step further. Tolkien calls the creature the Watcher in the Water (FotR, p.336), not an army of snakes. On p.322 of The Fellowship, Tolkien describes " the waters of the lake seething, as if a host of snakes was swimming up from the southern end" (the confusion about snakes being the creature) and "out from the water a long sinuous tentacle had crawled" (the creature is most probably a kraken). Other than that, the scene is fine. I just thought I would clear up the confusion there. Great build! Keep 'em coming!