WHAT IN PLAYING FOR THE MONKEY IS THE SYMBOLISM OF THE BANDAGED HAND?
(BITTEN BY THE MONKEY?) IS THE MONKEY US, THE VIEWER?

The meaning that you gather from Playing for the Monkey now, as a finished painting, is just as true or untrue as anything I might say. I could say that the monkey bit the woman—but that wouldn't make it so. I could say the monkey symbolizes the viewer (as you suggested). I could say the monkey symbolizes Elvis. I can say anything I want but that doesn't mean anyone should listen to me. The painting is finished and it's not my monkey anymore.