街头诗意粉笔画拼贴海报

Please turn every photo I upload into an independent high-end design poster, no multi-image stitching, each photo output individually. The overall composition uses a 3:4 vertical format, with top and bottom areas strictly 1:1 in height, each occupying 50% of the screen. The top and bottom halves are spliced directly and cleanly at the center line without thick dividers, borders, extra frames, or labels; all stylization, paper texture, and color changes occur only in the bottom half.

The top half preserves the original photo, maintaining the subject's identity, quantity, structure, posture, orientation, realistic texture, natural lighting, and original color atmosphere, with only slight high-end color grading to give it the quality of art photography and independent publications. To fit the frame, the environmental background can be naturally extended, but the subject must not be stretched, distorted, mirrored, or changed; if the uploaded image is an illustration, the top half is preserved as is.

The bottom half is a top-down photo of the ground: on grey asphalt or cement ground, use colored chalk to draw the most recognizable subject from the photo above, with thick lines, loose colors, a child-like directness combined with adult aesthetic restraint, and a generalized, instantly recognizable form.

The bottom half retains only the minimum information to make the subject instantly identifiable by theme: people retain quantity, posture, orientation, hairstyle, and main clothing colors, without depicting facial features; animals retain species characteristics, patterns, and posture; buildings retain roof trends, main entrances, and proportions; vehicles retain orientation, wheels, or hull curves; landscapes retain a horizon, ridge, or shoreline. Delete dense vegetation, repetitive window panes, messy backgrounds, and advertising signs.

There is a real small object on the ground cleverly interacting with the chalk drawing: a real fallen leaf becomes a leaf of a tree in the drawing, a small pebble becomes the nose of a cat, a real puddle becomes a lake in the drawing, a shortened piece of chalk is placed at one end of the drawing. Interactions must be clever, natural, and derived from the content of the photo itself.

The material emphasizes the real ground and chalk: the granularity and small cracks of asphalt, chalk powder and intermittent strokes, soft color surfaces smeared by fingers, and traces lightly scuffed by shoe soles at the edges. Natural daylight, soft shadows. Avoid 3D stereoscopic illusion ground paintings, digital brushes, and cartoon illustrations.

Composition: The chalk drawing occupies only about 40%–50% of the width of the lower half, placed off-center, with the rest being quiet ground; the ground white space is no less than 50%, and no full-body human figures or street scenes appear.

Colors extract 3–4 colors from the photo above as chalk colors, soft, bright, contrasting with the cold gray of the ground.

Text: Use chalk to write a short word or a short observation next to the drawing, in naive handwriting, no language restriction.

The overall presentation is a street poetic visual composed of ground texture, colored chalk, real small object interaction, and a large amount of ground white space. The core principle is: a drawing that would be washed away by a single rain, so it is even more important to paint it. Avoid 3D stereoscopic ground paintings, full-ground graffiti, digital brushes, cheap cartoons, and templated posters.

请将我上传的每一张照片分别制作成一张独立的高级设计海报，不多图拼接，每张照片单独输出。整体采用 3:4 竖版构图，上下两个区域高度严格 1:1，各占画面 50%。上下两格在中线处直接、干净地拼接，不加粗分隔条、边框、额外画格或标签；所有风格化处理、纸张肌理与色彩变化都只发生在下半部分。

上半部分保留原始照片，保持主体身份、数量、结构、姿态、朝向、真实质感、自然光影与原有色彩氛围，仅进行轻微高级调色，使其具有艺术摄影与独立出版物质感。为适配画幅，可自然扩展环境背景，但不得拉伸、扭曲、镜像或改变主体；若上传的图像本身是插画，则上半部分照原样保留。

下半部分是一张**俯拍的地面照片**：在灰色的沥青或水泥地上，用**彩色粉笔**画着上方照片中最具识别性的主体，线条粗、颜色松散、带有孩子般的直接与成人审美的克制，造型概括、一眼可辨。

下半部分按题材只保留让主体一眼可辨的最少信息：人物保留数量、姿态、朝向、发型与服装主色，不刻画五官细节；动物保留物种特征、花纹与姿态；建筑保留屋顶走势、主要入口与比例；交通工具保留朝向、车轮或船身弧线；风景保留一条地平线、山脊或岸线。删除密集植被、重复窗格、杂乱背景与广告招牌。

地上有**一件真实的小物**与粉笔画巧妙互动：一片真实的落叶成为画中树的一片叶子、一颗小石子成为猫的鼻子、一个真实的水坑成为画中的湖、一支用短了的粉笔恰好放在画的一端。互动必须聪明、自然、来自照片本身的内容。

材质强调真实地面与粉笔：沥青的颗粒与小裂缝、粉笔的粉末与断续笔触、手指抹开的柔和色面、边缘被鞋底轻轻蹭过的痕迹。自然日光，阴影柔和。避免 3D 立体错觉地画、数码笔刷和卡通插画。

构图：粉笔画只占下半部分宽度约 40%–50%，偏心放置，其余是安静的地面，地面留白不少于 50%，不出现人物全身与街景。

色彩从上方照片中提取 3–4 种颜色作为粉笔色，粉嫩、明亮，与地面的冷灰形成对比。

文字：在画旁用粉笔写一个短词或一句短观察，字迹稚拙，不限制语种。

整体呈现**地面纹理、彩色粉笔、真实小物互动与大量地面留白**构成的街头诗意视觉。核心原则是：一场雨就会被冲掉的画，所以更要画下来。避免 3D 立体地画、满地涂鸦、数码笔刷、廉价卡通和模板化海报。