I learned the importance of Notans.

Remember those from art school, probably from basic design.

I belive it is really good to revisit what we have learned in the past. some of us forget.
I forst did a Notan on my sketchbook , several different compositions, decide which works. then I painted them, worked up a gray scale , used a red gel to find the proper value, then matched the color. The first ones were garish … but fun and a learning experience.
I learned that my compositions are not as strong as I thought they were. Ha and my values are off, I spend a lot of time fighting to bring them back, adjusting, not a very efficent way to paint.