Logos, could you give a run-down of the colors and layers that you used for this paint job? I just ordered a Goremaw miniature, and will need to paint it up as a fire-elemental-infused purple worm for my Curse of the Crimson Throne campaign. Your take on Goremaw is the best paint scheme I've seen for Cindermaw from the adventure A History of Ashes.
Here's the adventure cover artwork:
However, I'm hoping to go more for the magma-creature effect you see trailing off to the right of the above image. I'm planning to base Goremaw in Citadel Abaddon Black, then Eshin Grey, followed by basing the undersides of his scales with Citadel Jokaero Orange, and work up to Troll Slayer Orange and then a Yriel Yellow/Troll Slayer Orange mix at the deepest portion of the underscale crevice. After that I'll wash him in Aggrax Earthshade, touch up under the scales with Troll Slayer Orange dry brush (and possibly the yellow/orange mix), then dry brush Eshin Grey on the exterior "ends" of the scales (about halfway out from the scale crevices), then top it off with a dry brush of Dawnbreaker on the "cooler" ends of the scales. His teeth and spikes will be bone shades, similar to your own.
Hopefully it will end up giving him a grey, ashy color on the bulk of his exterior, with the visual sense of an inner heat. Pray for me... I'm still relatively new at mini painting (I have only completed terrain pieces like barrels and such), but I'm going to need this for my game sooner than I would like to admit.