@ Rokket, if you modelled her in Wings, then your model is the single best thing ive seen come out of Wings! not that its a bad proggy, it just has very basic tools compared to say, Blender.

Anyway i too would love to see your topology, and I think your character is looking great and just need a bit more defintion and sculpting around the eyes,

It certainly doesnt need a more 'oriental or female'look', i think she looks like a natural looking vietnamese girl, you dont want to risk over exadurating her ethinic or female features, or you might end up with a more 'generic' oriental female, which would be a shame.

What you have now has a certain amount of quirkyness to it which is a really good thing -quirkyness = character, striving for perfection in a human face can often yeild rather dull and generic looking results :P

Its hard to know when to stop with a project of this nature, but personally I think you've nailed the overal look.