Responsive screen using flexbox

What are you most proud of, and what would you do differently next time?

I would like to try with a css grid as it would be better setup than flexbox.

What challenges did you encounter, and how did you overcome them?

getting the borders to match up with the image spacing in design

What specific areas of your project would you like help with?

i would like to see whether this is the optimal approach or going with css grid would have been better.