I am going to try to help you but with the disclaimer that this is a nightmare combo if you want to positively identify babies. I do work with all these genes so I am going to give it my best shot.
I think 1 is karmas only. I'm 80% on this.
#2 is a either a lesser/mojave or a karma pastel.
#3 Is a karma possible karma pastel
#4 is a phantom pastel or pastave. The head is really light for a phantom pastel, but the body is really dark for a pastave. I would not expect this much blue in the eye in any case. The pattern should be a little more wonky for a phantom. So on #4 I am going to say I have no way to be definite at this point. Maybe a couple sheds and some more pictures with this one and you will be able to tell for sure.
For the bels I suggest putting them under a blacklight. You can see more of the underlying pattern that way.
In any case they are all pretty snakes.
I made a difficult pairing this year also and I overestimated my identification skills. Lavender Spider to a Lesser Mojave Possible Pastel. I ended up with 2 Lessers, 2 Mojaves, and 4 Lesser or Mojave Spiders. So far I cannot tell if the spiders are Lesser or Mojave with pastel maybe mixed in. I hope after they shed I will have a better idea.
That second BEL is hard to tell but I agree with all of the other guesses and also work with all of those morphs. Love how dark that pastel phantom is!