Adding lots of pillows could really brighten up the brown couch! Love this example! Plus, getting your own fabric and making pillow covers could be cheap and fairly easy! (plus good sewing experience??)
Want these colors & similar fabric for curtains! Bellflower Fabric Medium weight Taupe cotton fabric with large playful contemporary leaf design in Chartreuse, Teal and Grey. Suitable for Curtains, Soft furnishings and General Domestic Upholstery.