Packaging Design Proposal Board Prompt

Please generate a "hand-drawn packaging proposal board style" product-introduction poster for 【{argument name="product name" default="baby formula"}】. If I've provided a product image, use it as your primary reference, preserving the product's core appearance features, packaging shape, colors, materials, brand identity, and overall character, and prioritize carrying over the primary color and color relationships from the reference image into your design. If I haven't provided a product image, automatically generate a product appearance and packaging design that fits the positioning of 【{argument name="product name" default="baby formula"}】, and automatically pair it with a natural, reasonable primary color, secondary colors, and background color based on the product's attributes, category traits, and character. Overall Poster Style Requirements: This is not an ordinary e-commerce product-detail page, nor a plain studio-shot poster, but rather a creative proposal board that blends a "finished product visual + packaging design sketches + brand concept development process." The overall result should present a highly aesthetic, highly polished brand-design showcase, as if a designer is presenting a packaging concept proposal. Image Requirements: - Portrait-orientation composition - Use a unified, brand-appropriate primary-color background; the background color should be naturally determined by the product itself, not fixed to any one color - The color scheme should harmonize with the product's attributes: if a reference image is provided, prioritize inheriting its primary color and brand colors; if there is no reference image, automatically generate a reasonable color scheme based on the product name - Place the single most complete, most eye-catching product hero visual at the center of the frame, with realistic texture, three-dimensional lighting, and a commercial, finished-product effect - Add multiple supporting visual elements around the product: packaging sketches from different angles, structural sketches, exploration of partial forms, small hand-held display sketches, packaging-unfolding concepts, and brand-lettering typography trials - Add natural, casual black or dark hand-drawn line art, arrows, circled annotations, symbols, and handwritten Chinese notes, to give the image a strong sense of "design process" and "creative proposal" - The finished-product visual should be relatively refined and realistic, while the sketch portions should be relatively loose and lively, forming a contrast between "finished product + design sketches" - The layout should feel relaxed and free, yet the overall composition should still be orderly, rhythmic, and have a clear visual center, expressing a premium graphic-design sensibility - Small graphics, symbols, or playful elements related to the product can be added in moderation, to strengthen brand memorability - The final result should convey a sense of brand identity, creativity, process, and visual impact Color Principles: - Do not default to a yellow background - Automatically choose the primary color based on the product type, material, use, consumer feel, and brand character - The background color, product color, text color, and sketch line-art color should all harmonize with one another - You may use a highly saturated solid-color background, or a soft, unified color-family background — as long as the overall result has brand identity and visual impact - The color should naturally serve the product, rather than overshadowing it Style Keywords: packaging-design proposal board, brand concept development, hand-drawn sketches, sense of design process, moodboard, creative review draft, finished-product rendering, visual experimentation, commercial design poster Please Pay Special Attention To: - If a reference product image is provided, prioritize following it and do not deviate from the actual product - If there is no reference image, automatically generate a reasonable product appearance, packaging, and color scheme based on the product name, and keep the overall style consistent - The focus of the image is "product introduction + creative design-process showcase" - Do not make it into an ordinary e-commerce product-detail page, do not make it into a promotional sale poster, do not make it overly neat and rigid, do not leave out the sketches and handwritten notes, avoid a cheap feel, and avoid a juvenile, cartoonish feel.