Can you attach a photo / link of the sample of the floor tile being used?

I think your colors are restful so I would work with those and not pop a color. Maybe some interesting artwork that had some color in it, but I think you should go for a more elegant calm look. By the way, I like the chandelier you have with the fireplace. I think I would paint the lower part of your wall the same blue as is in the top part. Then I would add some black accents in glass and lamps. Curtains that have a sheen or gold thread would be nice.

Gorgeous sofas! Would you consider using the Thibaut print suggested by Judy G Designs in a soft fold Roman shade? You don't say how many windows there are in the room. But Straight edge on the bottom, outside mount, clean and simple. The print has enough activity.

You can really afford to go for drama in a bedroom and paint it a dark color if you like. If you find that a bit of a 'commitment' I'd go with a dark wall where your headboard should be. It would work well with the frames and mounts that are on your pictures above the bed. I can see you're currently sharing your room with a baby so a blanket box (a decent one you can sit on) would be a good investment to get those toys out of view. Don't go crazy with wood, I'd get one you could paint and change the up the upholstery on the lid so that you can update it every 5-7 years as you will with your room.