A concept that's been in my head for a while, with Olli donning a Mexica-inspired battle gear but made with modern materials and techniques, such as a steel sword rather than obsidian blades and wood core, a shield smilarly of metal rim, and in particular a protective vest (ichcahuipilli) made of kevlar instead of hardened cotton, along with evidently modern-looking accesories such as the choker, garter, shinguards and bracelets.
I also made this to show the current-state of my cell-shading.