13.

Once the green paste is firmer, pick it up gently and press the 4 cm cutter to the yellow paste as shown in the photo. Press it so that it goes all the way to the styrofoam. Try not to press your fingers into the green paste too much. If you make indentations, smooth the paste (or retexture it) later.

14.

Remove the paste from the inside of the circle with a scalpel. Be careful not to damage the edge of the round cut-out.

15.

Use the bone tool (or a ball tool) to make eye sockets.