In keeping with the gray theme:
And adding to the pink:
Isn't this room pretty? I'd consider a couple of modern quilts.
This one would work and adds a sparkle of color.
This one is a bit louder, but it surely is pretty. I can see it draped on the back of that sofa or the bed.
Want to have some fun? Find a photo of a room that you like and then find some quilts, or whatever suites your fancy, to add to the photo. It's an inexpensive way to window shop!