I'd advise you to hold off further purchases until you get some responses here from the moderators. There are some things you need to know and consider. I also recommend that you do some reading in the Library section of the forums, the Quick Reference and Peacock Corner articles.
I'm myself relatively new to africans but I can say that two issues you will face are aggression and cross breeding. Some of the pictures you posted are kind of dark but I'll note the following:
1. it looks like the 'red necked peacock' is what I know as the 'Eureka Red' Aulonocara Jacobfreibergi
2. the blue ahli is a Hap yes, but IME they fit right in pretty well with peacocks.
3. the other two species you have are actually mixed breed fish and tend to be more aggressive than other peacocks and/or haps. I read about this myself and have found this to be true in my tanks. I've had to move on all but two of my male 'strawberry peacocks' once they reach adulthood due to aggression, and all the male OB's when they reached adulthood due to the same issue.
All male peacock/hap tanks are popular (but also challending) because of how colorful the males can get and how drap the vast majority of the females are. Note that in those mixed fish you have the females can also get relatively colorful.
In male/female tanks these fish cross breed very easily and this is undesireable for at least a couple of different reasons that come to mind atm; you wouldn't be able to get rid of/sell these fish. The resulting fish won't look good and if in the off chance you get some offspring that look good they won't breed true.
HTH
