I'm accepting suggestions to improve my project

Hello, what could I change or improve in my project?
be it the color, a button, a different design, I accept any suggestion.

Some screens I didn’t show in the video because they are still in development.
I created several accounts to be able to test, so there are dummy photos, they are stored in firebase.

the video is 1.5x accelerated

my special thanks to @Still-learning took away a lot of doubts and the ranking of scores was only possible thanks to him.