Personaggio serio che scrive un senryu buffo

An illustration featuring the character from the reference image, reflecting their [looks, clothing, expression, and atmosphere]. In the center-left, prominently display a vertical, large Japanese Senryu poem (5-7-5 structure) with a [silly and slightly funny] theme, written in an expressive handwritten calligraphy brush style with clearly legible Japanese characters. The content of the poem is trivial, mundane, or surreal, contrasting humorously with the character's appearance. In the lower right corner, depict the reference character holding a calligraphy brush and actively writing, maintaining an exaggeratedly deadpan, serious facial expression. Include traditional calligraphy tools beside them, such as an inkstone (suzuri), ink stick, and washi paper. The background, palette, and subtle decorative accents (such as tiny motif symbols or subtle sparks) match the character's original aesthetic and color palette.