Ashes of Hemna

The Ashes of Hemna is a mercenary guild that has its roots in ancient kayeni history. All its members have the distinctive coal-black tattoo blanketing their face (upon which their tribal tattoos are typically overlaid), and shockingly bright hair colors. Because of this, they earned the rather derogatory nickname "cinderheads". Most of the Ashes of Hemna are simply guns for hire these days, rather than anything resembling the revered assassins of old.

Ifgrid and Py are two such members of the Ashes: simply bounty hunters and fortune seekers.

Sedune

Sedune is a kayeni, much like Tessida. One of the interesting items of note about kayeni is that they possess an epidermal layer just below their very thin melanin layer that is highly reactive to adrenaline, seratonin, and various endorphins. In a nutshell, kayeni skin color changes with their mood. Sedune is an activist singer/beat poet, and when she gets fired up while reciting her poems or singing, her skin undergoes impressive hue shifts. To enhance the effect for her audience, she has gotten geometric designs tattooed across her entire body to mask and accentuate the changes. The result ends up being a scintillating kaleidoscope effect dancing across her skin.

On a technical note, this image demonstrates why I really should have taken a color theory course at some point. Also, sticking to a particular style likely would have been helpful.