Gris character concept art, 2D flat vector character design, Ghibli and Disney style, cute and quirky baby mouse, playing electric guitar, wearing sunglasses and headphone, t-shirt design, 18 years old, comic style, style simple haired, adorable, charming, Fantasy art, Watercolor effect, Adobe Illustrator, hand-drawn, detailed smile, zoom out, pastel colors, pink, blue, white, white background, close to camera, centered, full body framed, looking at camera, close to perfection, dynamic, highly detailed, smooth, sharp focus, illustration, centered, isometric, ready-to-print vector t-shirt art highly detailed colorful graffiti illustration , vibrant color, high detail, colorful treble clef symbols, mud splatter