I decided to use pen and watercolor today. First I sketched the end of this old gondola;
My biggest challenge today was the clouds, they often blocked the sun at the worst times and I'd have to wait until the sun came back to see the light/shadow patterns.
This is the back end of a fairly modern diesel locomotive. I really enjoyed making these close up sketches rather than try to fit the whole thing on a small piece of paper. I took lots of close up photos as well, maybe I'll make some small paintings following this theme.