想做一张极简到近乎冥想的画面，一座光滑椭圆的悬浮岛飘在无边白色虚空里，岛上只有一棵无叶白树，没有地平线，只有柔和的光线渐变。留白就是全部，越空越有存在主义那味。剪影和白树皮的细腻纹理是唯一的信息量。
英文提示词润色补全，保留极简气质：
A minimalist monochromatic shot of a single perfectly smooth oval floating island in a vast infinite white void, one leafless white tree standing on it, no horizon, only a soft gradient of light, long ethereal shadows, calm meditative existentialist aesthetic, sharp focus on the silhouette and the fine texture of the white bark, subtle grain, high-key lighting
负面词我压了 colorful、busy、cluttered，一点杂物都不能有。
