lot better than my first model. I think you should learn about light linking. I agree with what hammer and Gect said about the texturing it looks like you have some stretching. I would lower the diffuse on the mac monitor. And it looks like you are using depth shadows. If you are you are going to have to raise them but warning it will also raise your render time. For the bed covers your might want to put a particle on it gravity to be precise to give it that cloth feel. There are some tuts on line that show you how. But this is very good for a first render.One last thing I think your light intensity is way to high, thats why your getting that hot spot on the wall.