First one is a pearl ZZ classic. Second looks to be a mutt could be kamfa or an unintended result of breeding, they could even be brothers.
it is not a kamfa, many people make this mistake though because of the pearl, but the difference between kamfa and ZZ are based on body structure, kamfa and zz can have the same patterns
This is a good resource to tell the difference between the two http://flowerhornrusforum.com/topic/106240/1/
The pearl flowerhorn used to have the pearl that kamfas now are known for.
My breed
you may think it is kamfa as well but it is 100% Oldschool ZZ.