it doesnt matter what they are wearing as its quite obvious the right girl has a much nicer body. if you judge just from the waist up where the nighties are almost indentical and just as lowcut, right girl blows left girl away.
This could practically be the same woman, anyway.
The one on the right is showing more cleavage but that could easily be the gown she's wearing.
I think you'd all mostly pick her regardless of it though. Because she's sitting on a bed and lightly touching her lingerie, it's a lot more inviting than a standing chick who looks like she's making fists.
Left should put a robe on and start licking the feet of the goddess on the right. No one is looking at you.