Thanks Jules, Christopher, and Denise - I do see the color casts left over from when I desaturated everything but the eyes. It is always better to take a break and look at it with fresh eyes. I definitely knew about the rough edges, and I knew about feathering, but just haven't taken the time to practice using it. I forgot that I had moved Buster over from the left so he was closer in the frame, and that is really rough. So when I select their shapes, do I just set the feathering function to "1" or something?

Thanks for your help.