The "room of doom" animation wasn't bad, given that you've only been using Maya for 2 months and you "love" it lol so I say keep going. The lighting could be improved because there was no mood and the camera couldn't really show me much. Also in the "My room" animation, your camera kept zipping through the geomtry.

As far as the still shots, you need to work on your composition, its not just about knowing the software. I'm not trying to discourage you, honest critique is needed in order to improve. Rome wasn't built in a day so keep at it and welcome aboard :]