Yeah, I agree - they're great likenesses, and the overal colour/black-and-white feel is very reminiscent of the film itself. What font is that writing (and the writing in your current sig pic) in, BTW?
One minor point is the scale - if I remember, the yellow dude was kinda smaller than the average person, having been rebuilt by his rich dad (they probably couldn't find all the original pieces, hence the smaller-ness...ew, nasty thought...). Aside from that, loved it. 🙂