OK, I've started keeping track of my attempts by saving a photo and then writing some observations about the results. Kinda like a mini critique. This is mainly to help me sort out what I'm working on and how I can improve.
I'm going to include some of these comments here so that others can spy on my thought processes (such as my addled old brain produces nowadays).
I'll try to keep it constructive and to-the-point. Maybe someone reading these can at least say, "Ahhh, been there - done that".