Product's Main Image Blurry

Hi guys,

It explains itself: the main image that you choose under "Data" is blurry on my site, shoppandorascloset.com. Does anyone have a handle on why this happens?

Thanks!

looks as if you are upsizing an image,

the image has been compressed to a smaller size at some point and the website is now enalarging the small image to show at full size