It's a great attempt. I can see the perspective you're going for. The cabinets under the tv look good. Jojo looks like Jojo, both his character and framed pic. I love Jojo's expression. I've not watched the Powerpuff Girl's but I can imagine Jojo grumbling that the girls are getting all the attention. -grumble grumble-

Most importantly, I think, is that you finished it even though it was giving you issues! Yay! :D

Very good attempt, especially if you just used your imagination! I'd like to see you come back to a similar pic after a few more lessons. Keep up the good work!