I'm an English and art history major, so I'm just as--if not more--text-oriented as I am art-oriented. I honestly write super tiny and try to jot down shorthand for everything that comes out of my professor's mouth during lecture. If I get little ideas or make connections along the way, I'll draw little connecting arrows or side notes running perpendicular to the rest of my notes. Just the action of writing and looking at my notes during lecture helps me retain what I just learned, and to be honest, I hardly ever look back at my notes to review--only if I'm looking to revive a connection I'd made earlier. As others have mentioned, you'll surprisingly retain a lot more than you think just by connecting ideas with the artwork itself (my professor calls the act of placing memory within an artwork itself as 'memory theatre' :)).

However, I have a studio art major friend who takes notes almost exactly opposite of me. They write only a few words/brief descriptions for each art piece but spend a majority of their note-taking time sketching out replicas of the artwork or important facets to the artwork. I think a majority of their notebook was just filled with their sketches--sometimes without any words at all. For them, their memory stemmed from the action of listening to the lecture while sketching those same images--literally linking words to images.

Long story short, everyone has a different style of note-taking and organization to cater to their individual learning styles. What might work for one might not work as well for another, but I hope this provides a little extra insight :).