Really nice snakes the Gero Imbricata. The pics don't do him justice at all. Due for a shed and my average photography skills/camera don't help. Hasn't really darkened up at all with age, my Yallingup ones have a lot.
Kenshin - yeah they are highly variable. As they are a pretty new species in terms of captive bred animals. Be interesting to see what pops up over the next few years.