The medical centre is small enough to be on a ship (though a slight colour correction could make it tie in with Tantive designs).
It's a shame we can't lose the creepy midwife droids.
Vader is born out of technology but the children should have been born with human help to make the contrast more complete (perhaps Lucas was trying to make out that technology isn't good or evil, how it's used makes the difference, but it kind of back-fired for me in that scene).