who's that hot guy Ridley's standing with?
Secondly....yes, there are similarities...as there are bound to be similarities with just about anything. I CERTAINLY get an ALIEN universe, while at the same time feel like everything is fresh, colorful and different enough to stand on its own.
Time and time again Scott has said he wasn't interested in creating the same grungy (lived in, truckers in space) atmosphere that he created in ALIEN. Why would he want o replicate the same design of the first film again? Prometheus is what it is.