I also made Pin-Up Girls' Amanda bra. I did not use an underwire and used cups from a store-bought bra that wore out. It fits my dressform perfectly, but is too large for me. I made notes and one day will go back and work on adjusting it. All I want is a bra pattern that has no underwire and modesty cups. I can buy decent ones from Target, as long as I only want sand-colored ones, but I want to be able to choose my colors and fabrics so that I can have matching sets with my underpants or to coordinate with my shirts.
I unpicked the Mimosa, but here is the Amanda. Covering the cups was the hardest part and I finally settled for good enough. The cups are much longer and flatter here than they were on the store-bought bra, if that makes any sense.