yeah, crop the white line on the top, add more keywords, focusing on scientific cellular type terms. kind of looks like cells, or the brain - this will cross reference the image over to people that have money.
Interesting and very unusual topic for a painting. I like it!
The only thing left to reiterate is to crop off the white at the top. If you don't want to crop it, consider just cloning the white area to duplicate what's directly below it. That way you'll be keeping the exact measurement of the image to what it is now.
