Congrats on some super looking boas!
The second boa is a normal Colombian (BCI). I think the lighting is casting a slightly pinkish hue over the snake which might have led someone to say hypo. But to me, he looks normal. Still nice though!
The other 2 have some BCC influence. What percentage I can't say, but it's there. You won't see peaks on the saddles like that without BCC influence. However they are not full BCCs - or at least one isn't since it is apparently het albino. There are no morphs in BCCs unless they are crossed with BCIs.
To be clear, what you have here are not morphs. They are sub-species. You could say that the one that is het albino is het for a morph, but that's it.
Again, they are nice. Incidentally, being part BCC, the female is apt to get fairly large..... LoL!