Realistic Portrait of Woman Outdoors

Create a high-quality, realistic portrait of a {argument name="subject" default="young, smiling woman with long, dark hair"}, elegantly posed outdoors. She is wearing a {argument name="outfit" default="white, off-the-shoulder top"} and is joyfully looking down at a modern smartphone held in her hands, with one hand gently resting near her chin. The background should feature a picturesque, scenic view of a {argument name="scenery" default="calm blue body of water"}, perhaps a sea or lake, framed by vibrant, lush blooming flowers such as pink and red bougainvillea or geraniums. The lighting should be soft and natural, emphasizing a bright, cheerful atmosphere and a pleasant, sunny day.