Why IS that? Is it something to do with shrinking down the adult proportions?
Is it because the babies eyes are so much larger in proportion to the head that it messes up the rigging? Just curious
Babies don't have big eyes at all, it is the shorter face illusion and smooth bone structures . How smoother the brow bone how bigger and brighter the eyes appearance .. more lights entering the eye area.
It is about the skull just above the eyes line , that what make most 3D baby looks scary, baby don't have developed this part of skull well , Luna have it just little prominent too making her more boyish look than actual girl but at that age there should be no visible difference in genders based on bones, baby eyes area is not developed yet and not are the eyes or eyelids , eyeballs are around 16-17 mm , then later can grow to max 27mm in diameter by adult but average is around 21-22mm , the eyes growing rapidly from born until 2-3 years old, then it stop and grow again at 12-16 then stop and grown slowly until 20 years of age reaching their final size.
Babies are the most fat kids of all mammals , they need to store the fat as they use a lot of energy in developing after they are born , so eating and sleeping and growing .
The baby face is split on 4 exactly the same parts just below the eyebrows line down the chin , no matter the toddler or newborn he proportions are the same , 4 parts after eyebrows line , once the final teeth grown , the face elongate and proportions change, bones moving around again , as it never stop from a baby o and adult bones moving , out face is not set in stones .. 80 years skull of a person that lost all natural teeth will collapse back to the form it was born .. just different scales of course but everything going back to the beginning..
the only parts that never stop growing are nose and ears .. bad engineering I guess , someone forgot to put the off switch on those lol
I am sculpting as always my stuff with an anatomy book on my side as a helper. I studied human forms but recreating 3D humans is not the same as drawing it or painting it. I think babies are most difficult as you need to see through the fat
The too prominent or too deep brow bone create shadow , if it too prominent it will create kinda shadow looking like a zorro mask what will make it looks more masculine ( preference for adult male characters ) , normally for Young kids and females it should casting just 2 separate shadows as aviator sunglasses form when you put light above the head .. When you look at the render you can see the difference , however Luna's face is not bad , just little gangster. Born to be wild ! The newborn face shape of Luna is perfect.
Regarding the body it is all perfect .. nothing to add or remove ..