Nice looking setup! With that many geckos in one place I'd probably add more foliage and places to hide to lessen the change of fighting (even though they are currently getting along). How big is the tank? Keeping a few different caps full of CGD will also decrease your chances of fighting, I think I only see one in there. Just keep in mind geckos can turn on each other at any moment, it sucks but it happens somewhat regularly.

Your geckos are gorgeous, Penny is beautiful and Toby is one great looking pinstripe! Keep us updated when you start getting babies. Thanks for sharing.