I think 2 types of Pterophyllum are accepted today; Pterophylum scalare scalare and Ptetophyllum scalare meboldii/leopoldii.
I'm pretty sure the Ptetophyllum altum is considered a more distant relative to the two.
The two first can interbreede - I haven't heard of crossbreeding with P. altum.
- Which is not relevant to your fish, since they are all colour variations of domesticated Pterophyllum scalare scalare.....common angelfish.
I will not go into details of colour-genes and their combinations. This can be found in details, if you search the net..........
Your fish are a mix of dominant and resessive colour-genes, selected by a breeders to present specifik appearance of the fish (I do this for my hobby ).