Charming minimalist illustration of a tennis player in the style of a naive sketchbook with watercolor strokes

Prompt

Transform the image into a charming minimalist hand-drawn doodle illustration. Preserve the main subject, pose, proportions, and overall composition while simplifying everything into playful, childlike forms. Use loose brush-pen outlines with subtle wobble, uneven pressure, and naturally imperfect handmade strokes. Keep the linework clean and sparse, with tiny expressive details that give the subject personality. Add delicate watercolor-ink touches with very soft, restrained color accents while maintaining plenty of clean white space. Create a naive sketchbook feeling with whimsical cartoon shapes, spontaneous marks, gentle imperfections, and an authentic handmade drawing quality. Avoid excessive detail, realism, heavy shading, or polished digital-vector edges. The final result should feel like a cute artist’s notebook doodle drawn by hand with watercolor ink.