NFT preview card component using CSS Grid and Flexbox

My second challenge here!

Most difficult thing for me was to find an efficent way to add an image overlay on hover. I'd appreciate any suggestions on how to do it better.

Also I'm not sure if the footer element for the bottom text inside of a card is correct semanticly. is it used just for the text at the very bottom of the page or you can use them more then once, inside other elements ?