inside of dark rock cave, silhouette of a dark presence and a panther beast. fantasy book cover, alexandra dadarios line art watercolor wash, digital illustration, comic, concept art, highly detailed, artstation, smooth, sharp focus, illustration, Brian Froud style, art by Carne Griffiths and Wadim Kashin, detailed background, 60-30-10 color rule --niji 5 --ar 2:3