In Love with Mood Boards

Not the most exciting board in the world - the couch and the bookcase are what we already have, as well as the desk - although ours is solid wood and hand built by my brother-in-law. So those aren't going anywhere. The main concern I have is adding color and a seating area. This works - sort of, but it's definitely a new challenge for me to come up with something working around what I already have. Perhaps, I should start from scratch and just go with a color scheme instead.