This tutorial includes templates which will help you with the sizes and shapes. Click on the 'Templates' button below to download them. 

34.

Use a dry skewer to make a tunnel in the head. Without applying any glue yet attach the head. Check if you are happy with how the head sits on the body. If all is ok, take the head off and leave it to dry. Be careful not to smudge the paint.

Both the head and the body need to be completely dry before you attach the head otherwise the cake topper will sink.