Here are the landscape project from my control groups. They all had to do a landscape but I did give then an option to do any location that they wanted. I found this project to be easier to peer assess... Students were able to give quality feedback and we were able to go over the objectives more often as a large group. I think for watercolor, this is the BEST method. Give them option of subject but teach them the techniques of the process. I also felt that I really saw a variety of projects by just giving students an option of location.