The goal of seamless makeup is to create a natural, lifelike portrait where transitions in color and light are smooth. Begin with surface preparation: a clean, dust-free skin, a light primer, and a foundation that matches the doll’s undertone. Build a base that mimics natural shading across the face, using soft, layered applications rather than heavy layers. For realism, blend edges where the face meets the neck and jawline to avoid obvious lines. Use color theory to choose gentle highlights on the high points (cheekbones, brow ridge) and subtle shadows in the recesses (eye sockets, under the cheekbone) to sculpt dimension. Lips should have a gentle gradient, and eyes can be enhanced with careful detailing around lashes and lids. Keep textures minimal to preserve the impression of natural skin, avoiding shiny finishes unless the scene calls for it. A light sealant helps prolong the look throughout a shoot. Finally, observe lighting: balanced, diffuse light reduces harsh shadows and reveals makeup more accurately. Post-shoot, photograph under consistent light to ensure that the portrait preserves the intended seamless effect. Regular practice and a careful eye for detail will yield increasingly realistic results.