After the little studies, I went back to my full sheets and did a bit of tweaking.
September Sky and Steam.....
both worked on without looking at the photo reference.
Both full sheet (22" x 30") paintings on Arches watercolor paper - hot press or cold press.
(With the first painting, I'll have to do a bit of creative cropping so the thing isn't cut in two...I'm tempted to get rid of some of the bottom and the right side. Jerry says crop the sky and the right side.)