一张黑白极简手绘人物头像网格图，严格 6 行 4 列，一共 24 个头像，均匀排列在白色背景上。关键结构：每个头像都被一个正方形格子框住，正方形的四条边本身就是…

一张黑白极简手绘人物头像网格图，严格 6 行 4 列，一共 24 个头像，均匀排列在白色背景上。关键结构：每个头像都被一个正方形格子框住，正方形的四条边本身就是人物脸部的轮廓边界。脸部紧贴方格四边，没有额外边距。风格特征：纯黑白线条插画，无填充色块，无阴影，无渐变
手绘质感，线条略带不规则，天真怪趣的编辑插画风格
极简五官：圆点眼睛、小圆圈眼睛、短线眉毛、小点鼻子、直线嘴巴、小微笑、小难过嘴、困倦眼、惊讶O型嘴、面无表情
发型以线条勾勒：波浪线刘海、卷曲线条发、中分帘子发、平头短线、斜刘海、漩涡卷发、条纹发、扇贝状刘海
部分人物有圆眼镜、方眼镜、胡子、雀斑、闭眼、X形眼
人物表情各异：开心、难过、困惑、困倦、惊讶、面无表情
整体风格接近手绘人物图鉴，几何、克制、天真但不松散，平面化，高对比度，无颜色，无背景装饰，无写实细节。

A black and white minimalist hand-drawn character head grid, strictly 6 rows by 4 columns, for a total of 24 heads, evenly arranged on a white background. Key structure: Each head is framed by a square grid, and the four edges of the square themselves are the boundary lines of the character's face. The face fits tightly against the four sides of the grid with no additional margins. Style features: Pure black and white line illustration, no filled color blocks, no shadows, no gradients Hand-drawn texture with slightly irregular lines,天真怪趣 editorial illustration style Minimalist facial features: dot eyes, small circle eyes, short eyebrows, small dot nose, straight mouth, small smile, small sad mouth, sleepy eyes, surprised O-shaped mouth, expressionless face Hair outlined with lines: wavy bangs, curly lines hair, middle-part curtain hair, short flat-top, slanted bangs, curly hair, striped hair, scalloped bangs Some characters have round glasses, square glasses, mustaches, freckles, closed eyes, X-shaped eyes Various expressions: happy, sad, confused, sleepy, surprised, expressionless Overall style similar to a hand-drawn character catalog, geometric, restrained,天真 but not loose, flat, high contrast, no color, no background decoration, no realistic details.