Hey guys I was just looking for some opinions, I have this terrarium that I originally bought for my BP before I switched her over to a more suitable 20 gallon tank. Here is a picture of the enclosure that I have

(I just took this off of LLL reptiles site, mine doesn't have the water and everything in it )
I think it would probably be better suited to a climbing snake or maybe a lizard. I'd like to get another snake though, just wondering if anyone could point me in the right direction for a smallish snake that enjoys being able to climb around and could use that vertical space more
Thanks!
Adam.