Create a bright anime-style YouTube thumbnail illustration in 16:9 landscape format, set at the entrance of a Japanese school during spring cherry blossom season. Show exactly 4 high-school girls standing side by side on the right half of the image, each wearing the same uniform: dark green sailor-style blazer with white trim, large burgundy bow, mustard-yellow pleated skirt, white socks, brown loafers, and each holding a brown leather school satchel in front of her. Give the 4 girls distinct hairstyles and hair colors: long flowing pink hair, short wavy light brown hair, long blonde hair, and long straight black hair. Keep their faces softly blurred or featureless so the thumbnail emphasizes the concept rather than individual identities. The background should feature a school gate, school building hints, blue sky, sunlight, abundant pink cherry blossom trees, and many falling sakura petals, with a polished colorful anime-game look, high saturation, crisp lighting, and cheerful romantic spring atmosphere. On the left half, add large bold Japanese thumbnail text reading {argument name="headline text" default="もっと！モット！ときめき'99"}, using thick rounded lettering, white fill with vivid pink outline and warm orange shadow, arranged dynamically with oversized emphasis on “モット!” and “'99”. Add small decorative hearts, sparkles, and an underline swoosh around the text. Compose it like a clickable nostalgic dating-sim themed thumbnail: characters on the right, text dominating the left, energetic diagonal layout, glossy highlights, clean readable typography, cinematic depth, floating petals in the foreground, no extra characters, no logos, no watermark.