Happy birthday AI generator, colorful balloons, confetti, cake with candles, gifts wrapped in shiny paper, smiling friends gathering around, warm lighting, cozy atmosphere, joyful facial expressions, arms around each other, casual clothing, jeans and t-shirts, sneakers, relaxed postures, laughing and chatting, natural makeup, simple hairstyle, flowers on the table, soft focus, shallow depth of field, warm color tone, intimate composition.