Social proof section using flexbox and 2 media queries

Hello there. I did it but i feel like i've done it in a somewhat disgusting way. I've slapped flexbox everywhere and feel like it was a bit too much?

I also didn't know how to add height to the container containing 3 consumer's cards so i just added margin-top to 2 of them as translateY would overflow content under that container?

On top of that i don't know how to add background images and position them properly for now.

I've used 2 media queries for medium and desktop screen sizes. While going from medium to desktop size, 2 bottom cards have a little transition to make it a little more fancy. I've tried doing it with the 5 star ratings too but i couldn't make it to transition to center and right positions.

Any kind of feedback that will help me improve and grow is appreciated!