Clean Vector Portrait of Young Woman

Create a minimalist flat vector illustration portrait of {argument name="character description" default="a young woman"} with {argument name="hair style" default="long slightly wavy dark brown-black hair with loose bangs"}, wearing {argument name="glasses style" default="thin black-rimmed round glasses"} and an oversized {argument name="outfit" default="plain black sweatshirt"}. She is shown from the chest up, centered, facing forward with her head slightly tilted, eyes open and looking calmly at the viewer, with a soft closed-mouth smile. One hand is gently resting against her cheek near the glasses frame, elbow lowered out of frame. Use warm tan skin tones, clean vector shapes, subtle painterly gradients, crisp dark outlines, simplified facial features, delicate highlights in the hair, and soft shadow blocks on the clothing. Set the portrait against a simple solid {argument name="background color" default="dark warm brown"} background with no text, no props, no watermark, and no photorealistic texture. Square canvas, close-cropped social media avatar composition, polished editorial vector art style.