Thank you kindly for all the helpful comments.
These are self portraits, shot with a 50mm 1.8 at around f4 or 4.5. single speedlight through an umbrella high camera left with a white reflector center, waist high. Light fall off SOC was more defined, but I brought up the shadows in post.
I was standing. The tripod was at max height and, with the mount rotated to portrait orientation, was about 4 inches below my eyes.
I will consider the wardrobe suggestions when I re-shoot. If I use a paper backdrop, all I have right now are the marine blue and white. I'll pick up a roll of medium to dark grey eventually.
I'll use a stool next time, so I can sit with the camera at eye level. I could also use my 70-300 to compress the "prominent" nose

My wife is better with posing. I'll ask for her help next time. Should I have shoulders square to the camera and level?
I have a management position in the aviation industry, so the shots should be appropriate for a mid level manager.
Thanks very much for the valuable help!