Here are the exact links to the products you need to achieve the mock up design we made!
Zulu 4 pack in either 18" 20" or 22" (I would measure out your couch width to see which pillows would fit best!) I think you will be best off with 20"
Premium Faux Down Inserts in 18" 20" or 22"
Milo Lumbar in 12x20
Premium Faux Down Lumbar Insert 12x20
2 Maza lumbars in 12x26 (measure width of armchairs, you may want to do 12x20)
Premium Faux Down Lumbar Inserts 12x26 or 12x20
Casablanca throw blanket