I need some advice to look good in photos

1. My smile looks awkward (i don’t show teeth cause they aren’t aligned)
2. Angles in photos capture my ugly side for some reason only sometimes I get the perfect angle
3. I dont know how to pose and

I look awkward, and there isn’t ambient light on my face I feel

Can you guys suggest some tips to look aesthetic in photos

I’m 26M 181 cm