This is cross (Inca Rose x Fall River) produces nice, compact plants that bloom generously. This particular clone is more vigorous than my others from the same flask. My others are still bushy in 2.5" (6.35 cm). Meanwhile this one is in a 5.5" (14cm) pot.
This is a really fun cross. I got a flask of these, too. I have shared most of them as part of my Phrag fan folly.
What I like the most is that many of them bloom with an impossibly plump, deep rose-red pouch, that complements the two-tone petals nicely. Many have also had a heavily hooded dorsal, which is not quite reaching perfection.
Yours are lovely!