The first picture is a Hap. Blue Ahli and the third picture, the very front fish is a sulfurhead peacock. And, to be quite honest, I forgot what the name of my blue peacock was. I know he looks a lot like my Blue Ahli as he darkens up. I was researching different pictures of the aulonocaras, and I thought he looked quite a bit like the midnight peacocks.
Both are correct as these are 2 names for the same fish. Haplochromis Blue Ahli is really a trade name; its true name is Sciaenochromis fryeri as ibr3ak was suggesting.
Cool, looks like you either have a rainforest themed background, or maybe keep Dart frogs or something in a tank behind them? What kind of plants are those in the tank? I have a few of those electric blues as well, pretty fish.