Some great gags in here, really well written. Especially funny to anyone who's played the game and had to interrogate the Riddler thugs. I also liked the poke at the lighting bolts coming out of the thugs' head. Animation was nice and smooth. Only gripe was the voice-acting, not to say it was bad, far from it, but the quality of the recording could have been better; but like you said, this is your first submission so I expect this'll improve next time :) Skyrim easter egg was also a nice touch.
I was going to give 4 stars, but Batman flicking his dong back and forth made me lose my shit, so here's another half star ;)