First photo (Clockwise from top right) Female Rhampholeon temporalis, male Rhampholeon temporalis, female Rieppeleon brevicaudatus, male Rieppeleon brevicaudatus.
Second photo: Male brev
Third photo: Female brev
As you know the pygmies can live in small groups but if you add that new pair of temporalis to your existing enclosure keep your eye on the two males as they can sometimes be territorial. I would keep the pair of brevicaudatus in a separate enclosure as their temperature requirements are slightly different than the temporalis.