Rim height aesthetics

I'm a big fan of low profile rims. My wheels are currently on my work in progress track project. Eventually this bike will have 50mm rims but that's for aerodynamics and not so much for aesthetics.

Depends on the the bike. The general rule would be deep section for fat tubed bike, low profile for skinny tubed bike.

That Cervelo is the exception that proves the rule, as is this...

Even though I like both of these, if they were mine, I'd swap the wheels.