Good reference/inspiration for how facial elements can be 'pushed' in abstract ways to give me interest and differentiation to characters. Could be excellent for this project and I will have any faces to draw.
Bumi Parahyangan promotional poster and brochure by Rittsu, at Behance. Triangles don& seem to be popular shapes to use in graphic design, but Rittsu executes them well here. Notice the subtle arrows pointing right to persuade the viewer to read on.