Another cryptoart sketch

I've promised to show more work sketches. Here is second recent one. In fact this project is still unfinished. I've colored the other one yesterday and waiting for my client to approve it tomorrow. Hopefully without any serious comments :P But since I've done 3 different variants for them and two was rejected I can show it here :P

I've slightly edited the sketch to match the #cryptoart theme for participation in @sndbox challenge.

This is done with pen on paper and then I've scanned it and added few details in Adobe Photoshop.