Create a professional cartoon character design sketch sheet based on the uploaded portrait. Keep the girl’s identity recognizable, preserving her exact hairstyle, cardigan, black turtleneck, layered necklaces, hoop earrings, and warm friendly personality. Place the original colored portrait on the left, and arrange three pencil-drawn caricature versions around it on a clean white background. The caricatures should feature loose sketch lines, expressive oversized eyes, simplified facial features, slightly exaggerated animated proportions, and subtle variations in expression and pose. Use soft graphite shading, visible pencil texture, and authentic sketchbook linework. The three sketch versions should be monochrome pencil drawings, contrasting with the colored original photo. Overall style: high-quality concept-art sketchbook, character exploration sheet, clean composition, professional cartoon concept design.
