Realizing I didn't have a decent-and-recent picture of my original character, Marina, I decided to whip one up over the course of the day.
You can see from this that her basic body build is actually more on the average side. My girlfriend and I were talking earlier today about some styles where the feminine figure is hypersexualized to a point where it crosses over into the realm of caricature and even grotesque... I personally don't want to fall into that category.
It should be noted that Marina represents a general upper limit for breast size when it comes to my characters, barring proportion distortion.
practicing in Photoshop