This seems like a perfect shelf and cabinet layout based on our spacing. Could work nicely if face of fireplace were raw or white brick. Crown molding look? (not sure what to call fireplace surround) may be too formal but generally like.
Lounge: picture layout behind sofa .The IKEA KIVIK seating series is all about comfort, from the supportive memory foam in the seat cushions to the thickly padded, extra-wide armrests. It is the perfect addition for your cozy living room!