That's one pink rug.
You might want to scale down the brightness a little; as things look, it's as if Sol itself is outside that poor man's window. Of course, that's a matter of opinion, and you could keep it that way without hurting your game a bit. It'd be good in a desert residence, for instance. Also, the light should be fanning out from the window more; just take a look at how sunlight goes through your windows at home to get an idea of the angle you need.
Aside from that, just remember to cut off the light effect where it's supposed to be covered by the wall, and keep in mind that those square things are windows and not wall fixtures. The effect looks odd, coming from an interior dividing wall. XD
Nice start, though. The mapping might need some tweaks, but the lighting is pretty solid, once you fix things up a little bit.