Thumbnail YouTube thu hút

Prompt tạo ảnh

Ultra-punchy YouTube thumbnail background about [CHỦ ĐỀ], engineered for high contrast at small size. On the left, a cut-out of one person from the chest up with an expressive surprised reaction, eyes wide and one hand raised, edges cleanly masked with a thin bright outline separating them from the background. Behind them, a bold two-tone background split diagonally into deep navy and vivid amber, with a burst of radial speed lines emanating from behind the head and two large soft glowing circles for depth. One simple oversized icon relevant to the topic sits in the lower left, partially cropped. The right forty percent is kept visually simple with only the flat amber field, reserved for two or three enormous words of headline. Lighting on the subject is bright hard frontal light with a strong coloured rim from the right so they pop off the background. Colour is maximum saturation with clear separation between every element. Composition is a strong left-right split, nothing important near the bottom right where the duration badge sits. Wide 16:9, no lettering, no text, no watermark.