Hi senba, Great suggestions above! Yes, use the wallpaper background... but keep it really,really light blue. It will keep the room homogenous and will retain the softness of your paper. That is going to be a very pretty, very fun room when complete.... please post a picture! Elizabeth Cabell, ASID, CID

Love the armless sofa-bench! Try using it in the center as a "cross-linking" piece between the sofa and chairs. That way people can sit on both sides of it, conversing with the sofa people and the chair people. Put the chairs where it is and use the side table from the left of the pic, or the one with flowers, between them. You'll need one huge rug to anchor the space or two smaller, and very similar ones, to put on either side of the blue sofa-bench. The other two side tables are too tall and too short for your seating pieces, so ditch them. Use your coffee table between the sofa and armless sofa (18" away from each of them.) Here's a chart for judging table and lamp heights as you'll need to work on that for balance. Please try this arrangement, and post by commenting and using the Attach Images button to add pix of the update. We'll tweak it on out from there.

Your walls could be alost any color as for the furniture I would look into the tapestry and when that is decided choose a color from it for the walls

Choose a contrasting color to the sofa, while choosing keep light requirement of room in view. So for that you should use light color curtains only, such as light golden, cream, Off-White.