Almost decent, the trouble is you've got the floor, ceiling and walls all the same texture and color. There's got to be some variation otherwise it may as well be a mental asylum. Hard wood floors and a ceiling with more depth and shape would definitely do a lot here, for example:
Clear division of floor/ceiling/walls with the solid ceiling being broken up by both the light fittings and the recessed lighting panels.
The combination of visible brick tops and total flat also makes things look a bit awkward. Texture's not a bad thing, you could use tile prints on the couch to give the impression of cushion separations. Using a brick texture for what's meant to be a rug seems misplaced too. A simple dual-tone flat brick rug would do a world of good.
Just a nearby example to demonstrate the effectiveness of texture use:
The back wall of this picture could have been totally flat but the cobblestoned effect adds a new dimension. The floor is a single color but it's been broken up into tile bricks to make it a bit more interesting. I'll see if I can find a few of my older contemporary style builds I've done later.
