I got another flash of insight yesterday. I'm used to the old fashioned painting-on-glass method of matte painting. It occurred to me how to do it digitally and so that's what I did. This was done in fifteen minutes or so including walking to the park and rendering the video file, so it's all quick and dirty, but I'm rather pleased with it.
Sure opens up a world of possibilities! I just got my gallon pail of Green Screen paint today as well, so that opens up an even wider world. It's going to be a great year!