I'm trying to get out of my portrait comfort zone and into scenes and environments, so I tried out a new exercise today and I'm very pleased with the results. I grabbed a screenshot from Game of Thrones and painted as much as I could in an hour.
I didn't really measure or plan anything out, I just tried to put as much information onto the painting as quickly as possible before time ran out.
The exercise really helped me with form and value, and loosened up my stiff hand. I will definitely be doing this again very soon.