Blender - Cycles -Interior lounge render

Hi guys ! I just started working on an interior lounge scene, but i’m stuck, i think that something is missing but don’t know what.
So here is a render of the unfinished scene :

1 - I’m thinking of making the big white wall behind the fire place the same color as the sofa (reddish)…
2 - Making the wall pictures grayscale.
3 - I’m not convinced by the sofa materials, as they don’t look like fabric.
4 - I have no idea for the carpet’s color.
5 - Change the color of the white sofa parts.

What do you think of the overall scene ? Don’t hesitate to give critics and feedback :wink:

PS : I’m inspiring from this image here.