I think all 3 look ok.
Now, if we could somehow get the 60 plus crowd to move away from the white, short sleeved 60’s NASA engineer shirt and to something a little more functional and comfortable (but still ultra professional for you, whack), it would be the biggest QOL hike since they installed the cockpit door.
Military aviators don’t fly in business suits with epaulettes, and yet the public seems to have respect for them.
Lots of corporate guys wear slacks and a polo. I have never seen them being scoffed at in the FBO.