쿠키커터상어 일러스트

Cookiecutter shark natural history illustration: clearly show the rounded head, short snout, compact cylindrical body, dark dorsal side, pale underside, and a subtle turquoise bioluminescent band. Original scientific editorial artwork, clean side profile, sparse deep-sea particles, dark navy gradient background, restrained biological detail, readable silhouette, no text, no logo, no watermark.