Sorry to burst your bubble, but there is only one color variant of Amphilophus festae.
There are several factors that may make your festae appear to be different, such as food, quality of water, substrate, and generation. Obviously wild caugth festae are gonna be much much better lookin than any captive bred. All the fish you have currently are gonna look relatively the same. Male festae don't really color up properly until they are 10" or larger. Until then, you can't judge how they are gonna look as adult by their current appearance. The fish you posted are simply showin stress bars, which doesn't nesseccarily mean they are stressed. It has a lot to do with the attitude of the fish and what not as well. Plus having them all on a darker substrate is going to influence their coloration, with it being much more likely to have bands.
Having said that, only your FIRST THREE pictures look like true male festae. The bottom two pictures have the characteristic "Y" bar that is typical of festae, but they are lackin the SMALL occelated spot at the base of the caudual. Instead, they have the LARGE occelated spot at the base of caudual fin, which indicates Uro. Which makes me wonder if they are PURE festae, or possibly a hybridization of uro and festae. Hope that helps a little, cheers!!