At this point you need to use some neutral color. Something in the mauve range or even white. You have to have a plain background in order to make the colors work. You can always add color with accessories, curtains, lampshades, etc.

I think a soft mauve wall color would look very nice. The mauve color should correspond nicely to the pink carpet. In my personal opinion, the sage green bedspread would seem a little out of place.