Biomechanical demoness merges organic with mechanical, skeletal framework visible, entwined within the mechanical parts, perched on the Stairs of Gilgamesh, influenced by HR Giger and Stephen Martiniere, employing intricate acrylic textures for sharp focus, hyperrealism with organic and mechanical parts in high detail, volumetric ancient lighting casting ominous glow complemented by neon ambiance, abstract black oil accents enhancing gear mechanisms, grunge aesthetics, complex character design, rendered in Unreal Engine