15-second animated storyboard sheet, “Bastien: The Hidden Composition”, storyboard presentation, professional animation pitch board, organized storyboard grid layout, white clean background, elegant artistic atmosphere, emotional storytelling. Please preserve the illustration style and character attributes in the attached image Main character: Bastien — 45-year-old French janitor at the Louvre, slightly hunched posture, tired but intelligent eyes, expressive hands stained faintly with charcoal dust, short dark hair with subtle gray strands, wearing plain gray cleaning uniform, practical shoes, utility belt with cleaning supplies. Stylized 3D animated character with expressive facial acting and realistic fabric textures. Storyboard includes 15 sequential cinematic frames: Bastien quietly mopping polished Louvre floor at dawn Wide shot of enormous gallery with classical paintings Reflection of masterpiece shimmering in wet floor Bastien slowing down while staring at painting Close-up of his fascinated eyes studying composition Museum silence and warm golden gallery lighting His fingers tightening around mop handle thoughtfully He glances around to check nobody is watching Quick close-up of fingers scratching sketch lines into wood Rough composition appearing on mop handle surface Bastien comparing sketch to masterpiece Soft emotional smile forming briefly Footsteps echoing in hallway behind him He quickly resumes mopping professionally Final shot of hidden sketch visible on spinning mop handle Visual style: cinematic storyboard sheet 16:9 aspect ratio frames Pixar-quality 3D animation warm museum lighting soft depth of field elegant Parisian atmosphere highly detailed textures and reflections emotional subtle acting professional animation presentation layout clean typography and labeled storyboard frames polished cinematic composition golden-brown museum color palette octane render quality ultra detailed lighting and materials Mood keywords: quiet passion, hidden talent, artistic longing, solitude, secret creativity, emotional storytelling, cinematic slice of life, understated beauty Negative prompt: low quality, horror, blurry, messy layout, distorted anatomy, extra limbs, photorealistic humans, dark horror lighting, anime style, unfinished render, ugly typography, cluttered composition, noisy image Make the aspect ratio 16:9