Profile card component using flexbox

Hello again !

This one turned out to be way more complicated than I thought... It's not my proudest challenge. I think the position of all the div is vague, and I didn't find how to set the background image in an absolute position so it doesn't move as the screen size change. Should I put 2 div that occupy 50% of the body vertically, set them in an absolute postion then give them a background image ?

Thanks in advance ! (and once again, sorry for my english)