Yes, it's quite unclear what you want C&C for exactly. But i can say at this stage that half of those colours on the side are not needed whatsoever.

hmmm... maybe you need to add one of the olive greens back in. The emerald green on the right wall looks akward.
One thing I would mention is the size of the floor tiles being just as wide as the vertical panels on the walls. They take away a little, composition wise. Maybe if they are a bit smaller and offset enough so that the tiles lines don't quite meet the wall lines so perfectly (on grid).
The highlights on the tiles also produce too much of a bump. Maybe just using floor shadows is enough for this.
Do we know what kind of room this will be yet?

I don't have any time to work on this now (family problems) so I'll get back to it soon or someone else could do something with it... :)