Oddly, even small nipples may seem more prominent when they are perched atop a well defined muscle. That should not stop you from getting into top condition.
Just as you noted the distorted perspective due to the camera being so close; when you look straight down at your own nipples they are only 6 to 8 inches from your eyes. Anything you look at from this close range will seem unrealistically large. A more realistic view would be that in a mirror about 10 feet away. (20 feet total distance from eyes to image.)
Unfortunately, once the guys have their Gynecomastia resolved, they do not hang around here and we lose them as a resource for people with questions like yours. Most of the people who are active here are contemplating surgery, recent Post-operative, or coping with their Gynecomastia. I am one of the latter.
Hopefully, everything will work out well,
Good Luck!