Birthday Poster

Design a trendy urban birthday poster with a white and icy blue watercolor background mixed with neon glow elements and street-style paint splashes. Include a handsome young man wearing a denim jacket, white sneakers, sunglasses, and black jeans. Add modern stylish typography with glowing blue text effects and a cool cinematic vibe. Include abstract butterflies, smoke textures, and soft lens flare lighting for a premium social media poster look.
Make the aspect ratio 9:16