Several things, Budly.
First, welcome to the forum, I’m glad you found us and hope you’ll stick around.
Second, sounds like you have a wealth of experience as a creative professional and as a SCORE counselor. I have benefited from SCORE myself. I’m sure that experience could help some folks around here.
Third, to speak to the art, I’d say they are interesting, and a nice exploration. Some have more visual appeal to me than others, but that is simply personal taste.
As someone who buys stock on a very regular basis, I don’t see these fitting into my needs, but that’s not to say someone else wouldn’t get excited about these. I’d classify these a background texture. When used as such, they would likely overwhelm the foreground element – unless it is something big and bold in white or black. Again, this is me speaking based on my experience. Someone else could have an immediate need for these as stock.
It won’t cost you anything but time to create some accounts, upload the art, and see what happens.
Side note: you might want to check out this thread: