If you look at before and after photos of plastic surgery, sometimes you can see dramatic effects.
After plastic surgery, you can apply the app completely and look great in selfies.
Before plastic surgery, anyone would post explicit photos taken with a headband using a DSLR camera, or honest photos taken by someone using the back camera of a phone.
Then it's hard to compare, so I skip those things.

Please upload using a similar angle, similar environment, and similar application.