The adjustments along the way have been:
a) the introduction of very faint hints of an eyebrow line above each eye. This involved widening the skin area above the cruciform shape of the upper nose that is known as the sinus frontalis
b) extending the mustache length to the crease line of the mouth and arranging a depth of field in the mustache so that the upper portion is darker then the lower portion
c) de-emphasising the seemingly harsh line of the vertical philtrum between nose and upper lip
The effect of these modifications, I believe, is to make the face less severe in appearance. While the ambition is to achieve a type of nobility, (which, however, can carry with it an unwanted sense of a judgemental authority), the desired image would not be that of a harsh overseer but, instead, an image of a benign force whose nobility is the nobility of sacrifice and suffering.