Insect Creature Final Concept

Here's the final version to what I've been working on.  I have a color adjustment layer in Photoshop so I can change the color of the crystals in real time without having to mess with any color replacement or layer swapping.

Below I sort of show my process in the order I did it.  When I started on the highlights, I applied them with the Overlay blending mode active.  I would switch to the normal layer blending mode to see exactly where my highlights were.  I would also keep hiding and showing the highlights layer to see if the light "hit" properly on all the surfaces.  I'm sure it's not perfect but I did find a few other places that needed to be highlighted by using this method.