FACS 表情编辑

Using the provided reference image as the character base, keep the same chibi 3D figure, outfit, hairstyle, lighting, plain white background, and overall composition unchanged, but modify only the facial expression according to FACS action units: {argument name="FACS action units" default="AU1C + AU2C + AU5D + AU26C"}. Preserve the reference image’s square face-obscuring block in the same central position and regenerate the image cleanly with the same toy-like render quality.

以提供的参考图像作为角色基础，保持相同的 Q 版 3D 人物、服装、发型、光照、纯白背景和整体构图不变，仅根据 FACS 动作单元修改面部表情：{argument name="FACS action units" default="AU1C + AU2C + AU5D + AU26C"}。保留参考图像中位于中心位置的遮脸方块，并以相同的玩具质感渲染效果重新生成图像。