pokrad
A Fixture
Wrong measurements based on head size could be wrong if the proportion of the head is wrong, and from what I can see that is the case here.
Eyes should be aprox. at the middle of the head - so your head is too long from eyes down - so complete head is too long - so the measurement based on the head size is wrong.
Try to shorten the nose just a bit, and then put the jaw up a bit - as the chin is too big and too low.
Now You have a head that is a bit shorter, and can check the measurements again based on the new head size.
At least my eye is telling me this, I could be wrong
Here You have nice and simple head proportions:
http://www.oniriaminiatures.com/espanol-escalas-y-tamanos/
Eyes should be aprox. at the middle of the head - so your head is too long from eyes down - so complete head is too long - so the measurement based on the head size is wrong.
Try to shorten the nose just a bit, and then put the jaw up a bit - as the chin is too big and too low.
Now You have a head that is a bit shorter, and can check the measurements again based on the new head size.
At least my eye is telling me this, I could be wrong
Here You have nice and simple head proportions:
http://www.oniriaminiatures.com/espanol-escalas-y-tamanos/