Perfume product preview using flex box and media queries

I think this worked. It looked okay in the end. I had some major issues with the media changes. It seemed that although coding visibility: hidden; in the css the image or container would still be present (although was not visible still took up space). I also struggled on the sizing of containers when media would change. none the less this was very trail and error for me. Is there any advice anyone could give me in terms of media changes in relation to images and units ?

Thank you :)