Would i be a candidate for the doughnut incision breast lift and achieve rounder, firmer, perkier breasts? (photo)

Thank you for your picture. I think that you can benefit from a lollipop style lift wish her implants. The incision goes around the areola and down toward the crease from the base of the area. This will give you a pleasing brecciated overtime.

Based on your pictures it seems unlikely that a doughnut lift would be adequate for you.  Either you add some volume, or you remove more skin (which would leave more scars), to get perkier breasts.