A young woman lifeguard perched on a sunlit white lifeguard tower, wearing a simple white t-shirt and vibrant red shorts, is blowing a whistle. Her curly brown hair catches the light of the bright sunny day as she vigilantly scans the beach. Her natural hair color and eye shade stand out, captured in 8k resolution with professional color grading and depth of field. Despite the realism, there's a gentle artistic touch enhancing the scene's vividness and clarity, ensuring the environment feels lively and inviting.