You got it brotha. Male is Wild collected and female is Captive Hatched.This definitely isn't a full annamensis. To be honest, it looks mostly sinensis to me, but maybe a bit darker than your average hatchling. Not much here says annamensis, besides the fact that you have no adult female sinensis...
Really interesting stuff. I love Mauremys. I have started writing a book on them, with my wife, but haven't gotten too far yet. Get me some photos of your adults to be included in the book