AI YouTube缩略图制作器

提示词

Transform the uploaded plain video frame into a high-click YouTube thumbnail design while preserving the creator identity, face structure, desk setup, laptop, microphone, and tech tutorial context. Use a 16:9 composition. Crop the creator larger on the left third with an expressive surprised-but-natural face, clear eye contact, crisp face lighting, and strong subject separation. Simplify the background into a clean high-contrast tech studio look with blue and warm yellow accent lighting, subtle depth blur, and a bright empty title zone on the right side for adding text later. Add visual energy with directional light, clean edge highlights, mild vignette, sharp foreground detail, bold color contrast, and thumbnail-ready clarity at small size. Do not add readable text, fake YouTube UI, logos, arrows, emojis, brand names, watermarks, extra people, distorted face, oversized eyes, plastic skin, messy clutter, or unreadable random letters.