corona bump is very sensible so u can keep small values for it i think! I mean the lights generally, i think the scene i no really illuminated properly and for example the color and brightness diference between the celling ant the wall ornament does no look very accurate for me! In the second picture are areas overexposed as well for example the oranges!
I think, it would be good for u if u have some pictures of similar rooms to compare it with your renderders!!!