In my opinion, I could care less simply due to the fact that if I'm trying to achieve a certain look or body/head proportion, I have plenty of morphs to make the necessary adjustments, and there are plenty of breast morphs available. The only thing I noticed with female characters in the same series is many of them have the same general breast size/shape. My guess is the artists try to stay somewhere within a median between large and small because its easier to adjust up or down from there as opposed to having to adjust from the one or other extreme. I think I recall seeing some of her photo sets years ago, if its the same woman. Some of the themes of her photo-shoots I found to be rather disturbing and would probably get the photographer thrown in jail in some countries.