I've been mystified that I have the highest score and I just figured out why when I re-read the rules just now.
I didn't notice the scoring rule below when I posted my first score.
You may only count any given grid box for one bingo. So, a small abstract box could not count for both a small, medium, and large Abstract column bingo, as well as a small Abstract, Classic, Impressionist, Pop-Art, Realist, and Surrealist row bingo. You would have to choose which bingo to score.
My revised score is:
14 columns x 5 = 70 points
Or, if I've disqualified myself by misreading the rules, I'm okay with that as well. Sorry! *cheesy grin