Playful Cartoon Creature with Guitar

A playful cartoon creature with a soft, slightly rounded rectangular body that blends into the background for an organic, hand-drawn look, inspired by Japanese mascots like Domo, with a wide open mouth and jagged red-orange teeth, playing an acoustic guitar in an expressive pose, one arm raised mid-jam, colored in warm brownish-yellow tones with subtle textured shading, bold black outlines, soft grunge paper background with music notes and spark accents, lighthearted and energetic feel, kawaii grunge fusion style