i like that the main words are first and there are several usability studies showing this is the best way to do things.  the important part of the label isn't fingers and inner, it's nails and mouth.  and it makes it easy to scan and match the two items.  

people rarely use figures without textures, where the number of people i've read who i've read having problems managing materials is high.  i also think that Blender only supports like 12 materials per object.  i'm not sure of the number, but it's way below 20.  just because you have a seam doesn't mean you need a material zone change.  personally, i'd suggest limiting the number of zones like i would any interface choice (Blender's limit is probably a good one), but that's me.  

but if you are going to have so many zones, then they should just be the usable ones.  for instance, is the neck a zone that makes sense, or is it just something that follows your UV map? and the skull zone?  i think even without textures, the skull doesn't need a separate zone, but if it did, it shouldn't follow the UV map precisely.  the neck could be useful only if it were cut in a totally different place than the UV map, because clothing would come lower on the neck.  the hands and feet i'm less sure about, but imho, they only make sense as separate zones if you can use the edges for quickie, no texture clothes (gloves, leggings, etc.).  

i think if by eyeball you mean sclera  or eye white you should say so, just because i'm pretty sure i've used props or something where eyeball is an outer layer that should be transparent and reflective.  and is the cornea really a cornea?  or does it actually cover the whole eye (as the real cornea does not)?  if it's not really a cornea, which means it's just over the iris, then i wouldn't call it that.  as is, your materials imply the same eye structure as the Unimesh eye, and if it's more like the V4 eye, i think it would be good for that to be clear.  i've spent a lot of time messing with values and trying to figure out what should be reflective and what was under what.  

different zones for each set of lashes seems completely superfluous.