Create a bright, polished anime-style promotional thumbnail with a summer young-adult romance atmosphere. Use a 16:9 social-media header composition split visually: large typography on the left and two handsome young adult men on the right. On the left, place layered translucent white panels with soft glow and sparkles over a sky-blue background. Add large elegant serif text "GPT" in a blue gradient at the top and "BL" in a lavender-to-violet gradient below. Between and under them, add three lines of Japanese text: "最新の画像生成で", "作って", and "遊んでみた", using deep-blue calligraphic Japanese type. Include small star glints, diagonal light streaks, dotted texture, and a cyan underline swoosh. On the right, show two anime young adult men from the waist up leaning casually together beside a chain-link fence under leafy trees. The taller man has tousled dark-brown hair, a navy overshirt open over a white T-shirt, layered silver necklaces, and holds an iced coffee with a straw. The shorter man has messy silver-white hair, a white T-shirt with a small fictional crest, black backpack straps, layered silver necklaces, and one small earring. Their poses are relaxed, warm, and intimate but non-explicit. Use a luminous blue-and-white palette, soft sunlight, lens flare, bokeh, and a faint cityscape background, creating a clean article-thumbnail aesthetic. Make all characters clearly young adults, not minors. Output aspect ratio: 16:9.
16:9 ・ 4K
