Need clearer pics to ID properly, but here are my guesses:

Fish #1:
Hybrid: Metriaclima lombardoi x Pseudotropheus socolofi

Fish #2:
Can't really be sure - looks like a Rusty (Iodotropheus sprengerae), but I'm not exactly sure 'cos the barring's wrong.

Fish #3:
Pseudotropheus socolofi. It could also be a Cobalt Blue (Metriaclima callainos) or Red Zebra male (Metriaclima estherae).

Fish #4:
Er ... I dunno, probably some Peacock-Hap hybrid ... maybe a red Aulonocara Baenshe x Red Empress?

__________________
~ John ~
I am a Malawi Fan!