Congrats on your success so far
I, too, was overweight/obese for just about all of my life. I had no idea what I would look like "thin" and it's still weird to me that I am. After 20ish years being "the fat girl" I guess it's hard to just get used to being at a "normal" weight for about eight months.
There's really no way to tell WHAT you'll look like when you're thin until you get there. It also depends on what exercises you're doing. I'm sure if I did just cardio or no exercises that I would look very different at this weight than I do now with cardio and heavy weight training. Incorporating heavy weight training will greatly help you when losing weight AND it will help how your boobs look
Mine look alright. They're not big and full like many young womens', but they don't quite droop as much as they did just a few months ago which I think has to do a lot with the weight training I do. I even tried on a tie in the back bikini and it was supportive enough!!
Looking at your family might help give you an idea, but it didn't for me. I actually don't look like any of the normal-weighted women in my family, but I guess that comes from being a total mix of my parents (unlike my brothers, who each clearly favor one of my parents) and having a mixed background (hispanic/white). I can see I've got qualities from each side, but I don't particularly favor one side over the other.
In short, the only way you'll know what you look like at a normal weight is if you get there. If you want to look your best, incorporate some weight training in your exercise regiment if you don't already