Third day Trial Run - must get better

This is my third day using blender. I have some how achieve what i intend to do,
but still not there yet. The above images done, are for a motel room.

(Images are fairly ok, but still not satisfied.
There is still much to do in order to get something like this, on the below)

- This is a sample rendered by somebody else. At blender.org gallery - I must give credit this is a neat 3D rendering -