PLEASE NOTE that this reference was done fairly quickly and that I'm still not really all that happy about the composition! I will eventually make a new one with more information but this will do for now. (or at least until I develop them a little bit more.)
Development on these can be followed much more closely under the Crystali tag of my art blog: http://opheleus.tumblr.com/tagged/crystali

This is something I've been working on for about a month now and I just got around to 'officially' making a reference of sorts for them! (I will edit this description as things change, but if you want to see more of them it's probably best to follow my sketch blog because I won't be posting development sketches here!)