A higher number of good quality photos gives you a better chance for
All close-up selfies - various face angles are necessary for
good results. Backgrounds contrasting with your hair,
Use of any filters, covered face by hands/hair/objects, other people or
animals in the picture, and low-resolution pictures taken from far
*Quality is more important than the quantity - If you don't have 12
high-quality photos, just stick with the minimum.