HI there Edmund
Glad that your discus are settling down now. well when you buy one there is always that problem. It is called the pecking order, when one bullies the other and the other bullies the other one. The only time i have found that they do not do it is when the tank is small and the fish are a bit over crowded, ( not that you are supposed to do that) But still discus is like a bad habit, you buy one and you are hooked.
As regards the species you have, i would say the first one is a blue discus, still a bit small, the others probably are as you described, though to say the truth i am not too sure about the 4 one, malboro. Well you will have to wait and see till they grow a bit more. The important thing is that they are healthy.
Always make sure the water parameters are good, and that you do water changes. I have found that out at my expense when i do not do water changes , something happens and the fish suffer. The good thing is that if you do water change the chances are the fish recover.
Frank