A masterfully crafted headpiece with a streamlined design in the style of Kou Yokoyama, embodying a dieselpunk aesthetic. This concept art features intense combat action set against the backdrop of a ruined city, exhibiting a retro-futuristic theme. The artwork showcases intricate mechanisms and a wealth of details, with vintage elements and billowing smoke enhancing the dramatic background. The color palette is dominated by dark hues and a somber gray atmosphere to achieve a realistic digital painting. The headpiece is portrayed in a three-quarter view, illuminated by multiple light sources that add depth and cinematic flair. Natural textures and reflections on the surface accentuate the use of authentic materials. The scene evokes a strikingly detailed illustration with subtle cinematic lighting, while maintaining a sense of natural realism that enhances the overall composition.