Too many pillows on that sofa IMO if you have to mave a pillow to sit down you have too many pillows . I agree you need some color not blue and IMO smaller pillows too I like a nice bolster type pillow sometimes on a sofa and a lumbar one on a chair but in this case no pillow on the chair maybe a nice small simple throw in a color form the pillows for the sofa .Something like this for the bolsters on the soaf and then a nice throw for a chair in a color from that . Since the sofa and chair are soft colors I would not go too bright . Do you have arug in the space maybe get that first.