Help identifying these angelfish, please

[Livingtx]

I have 4 angelfish that I would like to know what they are. If anyone could please help me identify them, I would appreciate it. Thanks!

1. Large Angelfish with 3 stripes (the fish can change the color of the stripes). I picked this one up yesterday from Petsmart. It is quite a bit larger than the other other angelfish they had for sale.


2. This picture has 2 angelfish in it.
a. A small marbled one and a large one that I've had for some time.
b. A large marbled looking angelfish. I think the large one might be a veiled angelfish.

3. White angelfish with a black tail and a few black markings.

 

[Pomatomus]

They are all the same species, Pterophyllum scalare, but I think the first one would just be called "striped". The second two are a marble and marble veiltail, and I would consider the last one to be a koi angel. Very nice!