The lighting is perfect, surfaces perfect. And the floor must have very recently been thouroughly sealed and waxed, I like that, it feels real.
Two things, totally turn of the reflection on the walls, that way the corner in the walls will be stronger and more realistic. And line up the black spots of the carpet with the egdes, so there’s a complete border around them. The carpet looks so cheap cutoff “yard ware”, pity.
I’m rather unclear of what the two “rocks” should be. If they’re like “sitting bags”, maybe you could indicate that by some moulds (aka homer simpson g)
Since your pic is rather “brown”, maybe a subtle hint of some sleek plant could liven up that place. Just for the Feng Shui