I think all poppies are gorgeous, from the delicate little wild field poppies to the extravagant, lush paeony poppies (pionvallmo; lat. Papaver somniferum paeoniflorum or just P. paeoniflorum). This year my sis decided to sow some paeony poppies and right now they are blooming in gorgeous red and purple hues. I missed the first purple one as it wilted so fast, but yesterday I got some photos of the latest flowers. More are budding so I hope to get another round of photos tomorrow or next week (fingers crossed there'll be some pretty afternoon light to shoot them in too).
Paeony poppies have doubled, straight or curly petals, making them look very similar to paeony flowers. Hence the name. But some of the poppies only have the normal number of petals (enkelblommiga -- no idea what that's called in english), like the opium poppies they are a variety of.
(I've shown pics of our fast-spreading "feral" opium poppies, P. somniferum, before, e.g. here and here.)