Sleepy Character Resting on Banner

A minimalist flat vector illustration depicting the subject in the attached image lying on its side, its head resting on the edge of a large rounded rectangular banner. The main body is painted in a simple line art style, with smooth lines, eyes tightly closed, a relaxed posture with a hint of sleepiness. The banner must be at the bottom, occupying one-third of the negative space. The banner is a soft crayon-green lemon green rounded rectangle with subtle shading. The background is pure white, clean and spacious, with plenty of negative space left above. Modern UI illustration style, soft minimalist design, lively yet calm atmosphere, clear vector lines, high resolution. The ratio is 9:16.