The one thing I might have done a little differently was have faux Bob throw the word "happy" in everywhere. He was forever talking about painting "happy little trees" or "happy little lakes" or happy something or other. So, Mo would have been flanked by "happy" little wives and trees and such.
Yes, you’re right; throwing around a few “happys” would have made it even better. He did an excellent job with the Bob Ross happy face though. Never once did he slip in his demeanor. Impressive!