Looks great, you have really gotten a lot done and it all looks great too. The backdrops really do make a difference. I was not going to have any, but you all around here are slowly changing my mind and so far I still have access. I am not as creative as you or a lot of others around here though. Some of the projects you have done and posted about are amazing and you get so much done so fast too.
Looks like you have the foam board painting problem resolved and already have a fix, but thought I would mention this in case you weren't aware of it. Just a FYI here, if you are interested, there is a product called Gator Foam that is supposed to be paintable and won't warp. It is also sturdier than the regular foam board. I have not used it, only read about it. I believe it is also somewhat more expensive than the regular foam board as well.
