Hand-drawn colored pencil anatomical illustration on textured aged cream paper, vintage medical atlas style, sepia bones, target muscles in rich burgundy-red with fine pencil hatching, small green eucalyptus sprigs in the corners, soft daylight, NO leader lines, NO arrows, no text, no letters, no logos. Close-up back view of the skull base and first two cervical vertebrae, only the four small suboccipital muscles highlighted (short muscles between skull and atlas/axis), drawing in the left 60%, right 40% empty paper.
