綠帽橘框眼鏡的年輕人 naif 頭像，嘟嘴，背景為粉藍天空

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Create a naive digital selfie avatar illustration of a young person from the shoulders up, centered and facing the viewer with a simple direct smile. Use a square 1:1 canvas with a plain pastel sky-blue background. The character has messy black medium-length shaggy hair peeking out from under a green backward baseball cap with a small metal ring detail on the left side. Dress them in a blue denim collared zip shirt layered under a beige-and-brown checkered jacket. Render in a playful naive digital painting style with rough crayon-like texture, visible brush strokes, soft flat colors, simplified anatomy, minimal facial detail, warm peach skin tones, and an everyday casual selfie composition. Keep the crop close, with the head large in frame and the shoulders filling the lower third. Avoid photorealism, hard outlines, text, logos, or complex background details.