In a harmonious union of artistry and innovation that typifies AI art style customization using –sref, a whimsical astronaut floats serenely through a vividly detailed cosmos. This scene, captured in a vector illustration, utilizes a striking blue and white color palette set against a deep black background, where simple shapes blend seamlessly with intricate patterns. The astronaut, adorned with sunglasses and an electric guitar slung across their back, conveys a relaxed vibe as they navigate the star-studded space. This blend of vintage and cartoon styles highlights not only the crisp white outlines and blue details but also integrates detailed planets and stars, embracing a minimalist yet detailed aesthetic perfectly suited for a professional T-shirt design. The pastel tones enhance the visual appeal, making this image a captivating reflection of both playful and meticulous design elements.