First its a JPG. Please take your lovely image and save it as a PNG and work from it from there. The JPG is the format of choice for deployment since it is smaller but you only deploy as JPG; which means that you post the final picture you want as JPG onto your website but you work with your image as PNG before that time. The reason for this is that JPG loses quality every time you save it and upload it and change it but PNG does not lose quality over time.