The water soluble leather dye, with many layers of washes over it, and mixed with a bit of blue, even though the leather was from the same piece, there were spots of mixed yellow tones that added to the depth of the mask. It was originally suppose to be a demon with red colors and with horns but after making the ears too long (but still looks awesome in the end) I decided to go hornless and more of a forest elf/gremlin look.