Use first reference image as visual style only. Use second reference image only for Kublai Khan / Hốt Tất Liệt identity: same face, beard, robe, and dignified presence. Create a clean 16:9 story illustration for scene 3: symbolic wide 16:9 composition: Kublai Khan between Mongol horsemen and Chinese imperial court, transforming into founding emperor of Yuan dynasty, contemplative and conflicted. Style: vintage Bible storybook illustration, hand-drawn ink and watercolor, loose brown sketch outlines, soft transparent watercolor, muted earth tones, beige/cream paper background, lots of white empty space, simple educational storybook look. Negative: no text, no subtitles, no watermark, no logo, no photorealism, no 3D, no anime, no glossy digital art, no cinematic lighting, no dense full-frame background.