All the head whiskers should be trimmed off.  It gives the face a better profile. The neckline were the white meets the black should be trimmed with thinning shears along the edge to accent the color difference. Also any stray black hairs within the white collar should be trim out with thinning shears. All cowlicks in the hair on the body must also be trimmed down smooth with thinning shears.

Thanks, Deb