Generate a close-up upper-body portrait of a young, 18-year-old Californian woman. She is a singer-songwriter known for tracks such as "Bubble, " "Falling for You, " "Brighter Than the Sun, " "You Got Me, " "I Do, " "Try, " "Lucky, " and "I Never Told You." She has a soft, slightly oval—ranging from elongated to heart-shaped—face with harmonious, friendly symmetry and contours. Her eyes are hazel to light brown, featuring subtle green-gold facets, they are distinctively almond-shaped. Her nose is relatively narrow, straight, and even, tapering to a slightly rounded tip. She has a wide smile. Her lips are full and evenly curved, with the lower lip appearing slightly fuller than the upper one. Her cheekbones are softly defined. When she smiles, prominent, round "apple cheeks" emerge, giving her a very youthful appearance. Her ears are medium-sized, well-proportioned, and lie flat against the sides of her head. She has a smooth, average-height forehead. Her face is framed by a center part. Her hair is naturally dark blonde with highlights in shades of honey, champagne, and ash blonde, or styled in an ombre effect, the texture is fine to medium, with soft waves and light curls. Naturally, she has light, fine, straight eyebrows. Her mouth is well-proportioned with full lips. She displays a wide, warm, and natural smile. She has softly curved, high cheekbones that lend her face a youthful freshness, especially when she smiles. She has a smooth, medium-high forehead. As a small, distinctive feature, she has a small, elongated, narrow, skin-colored natural birthmark in the center of her forehead, above her nose and eyebrows.