Paint everything the same white, different finishes. Woodwork and bookcases use a semigloss finish; walls eggshell finish, ceiling flat finish. White, white, white.

Add white pillows to blue sofa.

Thank you. I've had trouble knowing how to integrate the sofa. My husband reupholstered it, so I have to keep it and work with it. It's pretty, but I need to tie the room together. White will be the key.

Do you have a suggestion for a rug?

Not sure a rug will work in the space. I suggest instead a white faux leather ottoman with storage for all the toys. https://www.overstock.com/Home-Garden/Winston-Faux-Leather-Storage-Ottoman/20717440/product.html?option=34374152

This treatment for the sofa window:

Inspiration photo for you: if you don’t want widow treatments, you can paint your window a dark color.

I think a gray would look fantastic with the couch. I have been a huge fan of Sherwin Williams Agreeable Gray and have used it in 2 of my homes.

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