Do I have enough breast tissue between my nipple and crease to achieve natural looking breasts with lower pole fullness?

Yes, I think that you have enough tissue to have natural looking breasts. No one is identical, but you are symmetrical. Your left areola could be elevated along with an augmentation. Your breasts are close together, so you should have excellent cleavage. You also have enough natural breast tissue to look very natural. Good luck!

You have all the ingedients to get a good result from breast augmentation.  Two different sized implants placed in front of your muscles will give you your best and most natural result