i think it will be cool to have a seamless body - head for close render :), also in some gameplay real situation the camera can zoom on the neck when colliding with wall or object some time.
just a suggestion
a real example:
https://preview.ibb.co/eCd1f7/wall.png
Camera colliding with the wall and cause a zoom:
https://preview.ibb.co/bsLgf7/wall2.png
The model quality is really awesome, it will be cool to have a seamless body-head, you’re doing an awesome work anyway, if you can fix this little problem the model is the best out in the marketplace, just for let you know 