Problem with submitting photos on line is they can blow them up on the screen a see every tiny imperfection. If you submit the minimum required 4x6 photos it’s a bit more difficult to see said imperfections.
My old trick!!!! Add cloudy day for the win!
Plus camera angle.
I always give them what they ask for and no more. I take plain photos against the inside of my garage door. Not too close, but not overly far away. Good resolution. Play by the rules, near the edge but not outside.