极简黑白童书感上下双拼海报

Create a vertical "top-bottom split" style poster, the canvas is strictly divided into upper and lower areas, overall maintaining sufficient white space, quietness, and a sense of high-end children's book editing.

Upper part:
Display the original photo uploaded by the user. The subject is limited to people, pets, animals, or the interaction relationship between people and pets, retaining the true photographic state of the subject, including shape, fur color or skin tone, hairstyle, clothing, posture, movement, expression, and overall temperament. The upper part is not redrawn in illustration style; it should be like a clean, real, and clear reference photo. The background can be moderately simplified and cropped, but do not let buildings and the environment become the main character; the focus is always the human or animal subject.

Lower part:
Extract the same subject from the photo in the upper part and reconstruct it as a minimalist thick black dry medium silhouette illustration. Do not mechanically trace photo details; instead, compress the subject into a rounded, thick, slightly naive generalized form. The head, face, ears, hand movements, tail, body outline, or the most memorable parts can be moderately enlarged, making the original object recognizable at a glance even under minimal information. If the photo contains multiple subjects, retain the most important interaction relationship and treat them as a single visual unit rather than an average dispersion of focus.

The image uses only a near-pure white paper base + thick black crayon, charcoal, or dry rub marks, no color, and no grayscale gradients. The black form is not a smooth solid vector block but is formed by repeated application of short, powerful crayon strokes, retaining paper grain, broken strokes, indentations, rough edges, uneven thickness, and local white gaps. The outline is slightly shaky, incomplete, and imprecise, keeping the image with a true handmade feel.

The most critical identification features of the subject can be strengthened through "white characteristic areas suddenly cut out of the black silhouette," such as human facial contours, around the eyes, hairline, mouth shape, pet face, nose and mouth area, chest patterns, the core structure of objects, or the most recognizable parts; then use minimal black dots, short lines, or symbols to complete expressions and details. Do not pursue realistic facial features and precise structures, but let a direct, interesting, and strong recognition relationship form between black and white.

The composition maintains large areas of pure white space + one main visual relationship. The subject can be suspended in the center, or slightly offset, partially cropped, or near the bottom of the screen, using only a rough ground friction line, a few short lines, or minimal environment symbols to suggest space. Grass, wind, tabletop, ground, smoke, roads, shadows, or other environmental information should be compressed into minimal crayon marks, keeping the background quiet and empty. The overall goal is not to pursue complex scenes, but to let a posture, movement, distance, or relationship bear the main narrative.

The text retains a small text system where a high-end sense of editing and a children's book feel coexist. Don't just write location or object names, but extract a short English title from the emotion, movement, relationship, time, or small story in the photo, and then match it with a number, a suitable golden quote, a chapter number, or a very short, subtle small copy. The text can be restrained small printed text, or a very small amount of clumsy handwriting, crayon characters, or not completely regular font shapes can be added, making it look as if it originally belonged to this illustration.

The text needs to have a clever relationship with the graphics: it can be arranged along the ground line, extend along the direction of the subject's movement, hide in large areas of white space, produce slight occlusion with the outline, be stuck in the negative space between two subjects, or use a thin line to connect the number with the subject. Maintaining "one short title + 1–2 groups of minimal auxiliary text" is enough, letting the text become part of the compositional rhythm rather than a common poster title.

The overall presentation features the visual characteristics of "upper part real original image + lower part black needs to be thick, white needs to be clean, shape needs to be simple, texture needs to be rough," maintaining a subtle balance between childishness, softness, quietness, humor, and loneliness, like an old black-and-white children's book re-edited by a high-end design studio. Avoid smooth digital outlines, precise line art, realistic light and shadow, thick painting, three-dimensional effects, color, large areas of gray rendering, cartoon sticker feel, and templated commercial illustrations.

创作一张竖版“上下双拼”风格海报，画布严格分为上下两个区域，整体保持留白充分、安静、有高级童书编辑感。

上半部分：
展示用户上传的原始照片。主体限定为人物、宠物、动物或人物与宠物之间的互动关系，保留主体的真实摄影状态，包括外形、毛色或肤色、发型、服装、姿态、动作、表情与整体气质。上半部分不进行插画风重绘，应像一张干净、真实、明确的参考照片。背景可适度简化与裁切，但不要让建筑和环境成为主角，重点始终是人物或动物主体。

下半部分：
将上半部分照片中的同一主体提取出来，重构为极简粗黑干媒介剪影插画。不要机械描摹照片细节，而是将主体压缩成圆润、敦厚、略带稚拙感的概括形体，可适度放大头部、脸部、耳朵、手部动作、尾巴、身体轮廓或最有记忆点的局部，使其在极少信息下仍能一眼识别原物。若照片包含多个主体，则保留最重要的互动关系，将它们视为一个整体视觉单元，而不是平均分散焦点。

画面只使用近乎纯白的纸面底 + 浓黑蜡笔、炭笔或干擦痕迹，不使用彩色，不使用灰阶渐变。黑色形体不是光滑实心矢量块，而是由短促、有力度的蜡笔反复涂抹形成，保留纸张颗粒、断笔、压痕、边缘毛糙、浓淡不均和局部露白。轮廓略微摇晃、不完整、不精确，让画面保持真实手作感。

主体最关键的识别特征可通过“黑色剪影中突然切出的白色特征区”强化，例如人物的脸部轮廓、眼睛周围、发际线、嘴型、宠物面部、鼻口区域、胸前花纹、物件核心结构或最具有辨识度的局部；再以极少黑点、短线或符号完成表情与细节。不要追求写实五官和精密结构，而是让黑、白之间形成直接、有趣而强烈的辨识关系。

构图保持大面积纯净留白 + 一个主要视觉关系。主体可居中悬浮，也可轻微偏置、局部裁切或靠近画面下方，仅用一条粗糙地面摩擦线、几根短线或极少环境符号提示空间。草叶、风、桌面、地面、烟气、道路、影子或其他环境信息都应被压缩成极少的蜡笔记号，让背景保持安静空旷。整体不追求复杂场景，而让一个姿态、动作、距离或关系承担主要叙事。

文字保留少量高级编辑感与童书感并存的小字系统。不要只写地点或物体名称，而从照片中的情绪、动作、关系、时间或微小故事提炼一个简短英文标题，再搭配编号、适配的金句、章节号或一句极短的含蓄小文案。文字可以是克制的印刷小字，也可以加入极少量笨拙手写、蜡笔字或不完全规整的字形，使其像原本就属于这幅插画。

文字需要与图形发生巧妙关系：可以贴着地面线排列、沿主体动作方向延伸、躲在大片留白中、与轮廓产生轻微遮挡、卡在两个主体之间的负形里，或用一条细线把编号与主体连接起来。保持“一个短标题 + 1–2 组极小辅助文字”即可，让文字成为构图节奏的一部分，而不是普通海报标题。

整体呈现“上半部分真实原图 + 下半部分黑要粗、白要净、形要简、质要糙”的视觉特征，在童稚、温软、安静、幽默与孤独之间保持微妙平衡，像一本由高级设计工作室重新编辑的旧黑白童书。避免光滑数字描边、精密线稿、写实光影、厚涂、三维效果、彩色、大面积灰色渲染、卡通贴纸感和模板化商业插画。