Aesthetic Graphic Fusion Portrait

Generate a bright, fresh image-and-text composite visual built around a specific theme: the image uses a large expanse of high-brightness, pure color field to support the subject; the background is flat, airy, with no complex depth of field. The visual weight is established by a boldly cropped portrait or real subject at the bottom, showing only the most memorable part, so the subject looks like it's entering from the edge of the frame. Above the subject, overlay a minimalist graphic symbol or mascot-like character — it should look like it's gently perched on top of the subject's head or grown out along its contour, with a rounded form, clean edges, and an expression or structure formed with just a few bold lines, combining a logo-like feel with approachability. Text is an active character in the image: use a large handwritten-feel title at the top, with loose letter spacing and soft strokes, like a gentle greeting; use a stronger vertical or axial title in the center to establish hierarchy; place a small amount of small-sized information at the edges, keeping it quiet but precise, so that the white space continues to dominate. The color should be drawn from the subject's own material, mood, region, or brand semantics, mapped onto a bright base tone, a clean bright surface on the subject, clear dark structural lines, and a small amount of emphasis-information color, preserving the relationship between a large light, airy base field, a small area of high-contrast text lines, and the subject's natural shadow area; overall keep it high-brightness, clear, clean, with distinct but not overly stimulating saturation — dark colors should be used only for structure and readability, without creating a dirty-gray, smoky, or dated feel. Create a contrast between realism and childlike playfulness between the photographic portion and the flat graphic; the overlapping edges should be precise, shadows minimal, and the finished feel should be like a relaxed visual system combining municipal public advertising with character illustration. Theme: {argument name="theme" default="Liu Yan"} Ratio {argument name="ratio" default="9:16"}