I think your Tootie model looks a few years older then the original. Her limbs are definitely too long, and her her original face was more baby'ish (atm the sculpts face is kind of terrifying).
I agree with gsokol, painting in your highlights on the diffuse can really help your forms read well. It makes the edges pop, try to put them wherever the lightest faces meet a darker face.
As a Londoner my advice to you is developing a good emotionless face, that way you bring less attention to yourself, just like most people in London, things happen around, poker face all the time.
The face looks like it's structured about right, it's just bizarrely squished horizontally. You just need to grab the entire face and scale it along the x-axis and you'l be much closer to what you're needing.
you could always use in maya the move to edge, face, vertex, its on the marking menus. Press W and hold, go to axis and set to face... that would be the same thing. It just doesnt show the grid
Any reference you're using for this ? Especially on her face ?? I ask that because she doesn't look very Asian. Actually the stereotype Asian female face looks almost the opposite of what you have.
Her face is spot on, that looks amazing. The only thing that bugs me is her hair that is on her left, under her chin in the drawing, looks like a shoulder when I am focusing on her face.
Questions: What does the wireframe view look like in substance? Does it show geometry there? Is your mesh triangluated before loading into substance? Are you certain those missing faces have their normals facing outward?
Based of Jin Kazama but a female version. I did this acouple of years ago. Everything iv learnt so far about the face i redone the face structure. This what she looked like before
Some more female face practice! :) I tried something new with the hair this time. I think I went a bit overboard on the strands, but it was more of an experiment than anything else. Time for more faces!