A stunning young heroine in sleek futuristic warrior armor stands proud. Her attire reflects a blend of cyberpunk aesthetics and vintage Soviet poster style. In the background, weapons like guns and swords are artfully arranged, echoing her fierce capabilities. A dynamic mech battle unfolds behind her, capturing the intensity of war amidst a bright sunny day. The scene is brought to life with anime and manga influences, showcasing rich, dark colors and the precision of offset printing. The composition captures high detail, resembling an 8K HD poster design in CMYK colors. Despite the chaos, her expression remains joyful, and the natural lighting highlights her vibrant spirit in a vertical 9:16 format.