chatter beast looks nice form what i can remember of the movie..
Plan on texturing it?...woudl love to see that
CAr is nice as well, but i agree wiht the earlier commentabout it looking like the usual Toss an HDr image and let'r fly...
Trees would look ok, if there were soem form of residential scene to go with it, But on a blank backdrop, Trees, buildeins anything woudl look out of place, as it does there..

G