bed
Very nice. The lower desk is beautiful, though it could be brought out by a stud, making some of the small details easier to see. The pillow on the upper portion looks in desperate need of fluffing, try some curved slope bricks. Two of these, back-to-back would work well.
chair
Not liking this so much, seems very out of scale with itself. Why not swap the red 2x1 Technic barrels for 1x1 System ones? The pointy roof piece at the top fits nicely with the other sharp angles on the seat, though it looks likely to punch a hole in the occupant's head. Try raising it 2/3 of a stud with two red 1x2 plates.
floor
Love the rug and the lack of 2x2 tiles in the wood floor.
couch
Nice lime. *sweet* The things that stick off the sides both intrigue and confuse me, what are they? The backrest should be two studs wider, as to match the seat. I'd also like to see another set of lime car hoods on the upper part of the backrest.
side table
*shrug* Oddly shaped, but whatever.
tentacle light
Cool, very simple, yet effective, not sure what's with the base of it though.
teal table
Probably my least favorite part, it doesn't look like you could set something on it without it sliding to the center. I'd completely restart on it, maybe in a different color if you lack any other teal.
speakers
Simple, realistic, perfect.
TV
I'm having trouble figuring out what the wheel wells are supposed to be. It also looks as if the teal table blocks any view obtainable of it from the couch, maybe build a table for it to sit on?
small bookcase
The trans-blue thing on top of it puzzles me, what is it? The bookcase itself is nice, I haven't seen good storage-room in a small piece of furniture like this is a long time.
Next, build walls with lots of interesting posters for it. X-D