培训机构插画女孩科学实验专注素材图片

A young Chinese girl with pigtails sits at a desk doing a science experiment, with a curious expression, holding a test tube. Pure white background with no decorations, even and bright natural light. The subject is centered and occupies 55% of the frame, with ample white space around it. 16:9 aspect ratio, rounded and flat style, warm and healing color palette.