These are some environments I'm working on. They aren't super detailed, my teacher told me with the time I have to work on them, they shouldnt' be super refined but should get the point across. I am still having a lot of trouble with lighting (what's new?). I feel, for the lack of experience I have doing this sort of thing, that these are somewhat decent. Still gotta touch up a few things.
The first one is done in photoshop, in about 30 minutes. I wanted to play around with colors and try to get a good idea of placement. I'm still not completely pleased and it could use a few touch-ups. The second is done in illustrator with vector shapes. I've also used the brush tool for a few of the lines. I've got a couple more shapes to add for that one.