I’m an amateur in Blender so I can’t give technical criticism or advice, but I can say this looks absolutely beautiful especially the soft light of the lamps on the wall. Well done!
Models, textures and lighting fit perfectly!
First, this is really nicely done and well executed.
Second, and since you asked about the composition, my impression is dark, cold, overly tidy, empty, not inviting. I think this is coming mainly from the low lighting, the blue wall paper and the open doors. The modern image on the right wall makes a strong contrast to the rest of the interior decoration.
Now, that is only my impression, of course, and perhaps that dark and cold atmosphere was what you were going for. And it does not mean that it isn’t well executed.
