I have read in several conversations that the hi-res textures were not available in the last weekend beta(to cut down on download size), and that the final game will look much better. Some people however expressed doubt whether this is the case.
I have found one of the screenshots that got leaked around summer this year:
http://media.giantbomb.com/uploads/3...lmorra__9_.jpg
I believe the texture on the droid is higher-res than what i saw this weekend.