I checked your site for Abbie and Peach. Nice titties on both girls, but not what most would consider big by any means.
They don't look like DD as advertised. Peach looks to have shapely Cs. Abbie, more or less the same. These girls would get lost in a DD bra.
I get how cup-size works in relation to the typically smaller body size of many Asian women. And most agencies and AMPs over-state breast size in their adverts.
I would consider Chesty Cathy's/Cindy's rack as the starting point for "big" tits on an Asian.
Still, you've got some very attractive young women in your group.
That's probably a fair statement to be honest, although peach/abbie might have trouble with a C. D is probably about right.
The problem is that MOST (not all) guys have no idea how to judge bra size. And all the ads are so inflated that guys think a C is a D, B is a C because they just don't know any different. Some girls aren't much better, lol.. for example when a girl says she wants to go from a 32D to a 36D, this is just strap length and the cup size is the same. A girl with a 36 trap, is just more fat than one with a 32 lol. Anyway point being, we have to write it that way because most guys don't have an accurate picture of what these sizes are and if you say B they are going to think A. Again, not all.. just speaking about the masses.
Asian girls are typically small so its hard to say what big is without some sort of definition. However, I myself love a set of abnormally huge fake cans (pornstar style) on a tiny girl.
That girl Michelle Lee looks my type, but she hasn't posted an ad in a while. If you like a plastic princess can try her.