masterpiece, best quality, 1girl, solo, full body, silver hair, twintails, serious expression, detailed eyes, subject close-up, white frilly blouse, red ribbon, green corset, dark teal tiered skirt with black laced details, brown leather knee-high boots, holding a large and complex multi-barrel sci-fi cannon (railgun/gatling) in a posed stance, background of a post-apocalyptic urban ruin, collapsed buildings, street rubble, distant crane, fires, glowing green digital data grid lines and hologram projections, cinematic lighting, detailed art style, cel-shading.RRRyu