bookend sculpture 3d model

Ultra-realistic product render of a 3D-printed sculptural bookend set composed of two mirrored human heads, vertically sliced in half. The heads are positioned back-to-back, each facing outward in opposite directions, creating a clean, symmetrical negative space between them for holding books. The outer shell of each head is smooth, minimal, and anatomically refined, with subtle facial features and a clean silhouette. The surface shows fine horizontal 3D printing layer lines, enhancing realism. The interior of each head is hollow and reveals intricate organic structures inspired by coral reefs, branching trees, and root systems. These internal forms are highly detailed, delicate, and complex, growing naturally within the cavity of the skull, with varying thickness, density, and depth to create a sense of biological growth and depth. Material: matte dark concrete-grey PLA filament, slightly rough texture, visible layer lines, realistic 3D print finish.