You're just sort of searching for this 'thing' and sometimes you get it and sometimes you don't. All music is imperfect, but in jazz since you're improvising, at least the way I play, I'm trying to follow my train of thought in a solo.
When you have a gown, there's much more to be concerned about. Where is this crease falling? Are you making a weird shape with the dress? Are you doing the designer justice? With a bathing suit, it's more about you and the mood you convey.

