You need to directly link to the image; a link where you can only see the image and nothing else.
You used a link to a website that contains your image:
http://epvpimg.com/Zv8Adab
but you need to use a direct link to the image (the ends in most cases also with your file extension, e.g. .png, .jpg, ...)
So if you use:
http://i.epvpimg.com/Zv8Adab.jpg instead of http://epvpimg.com/Zv8Adab then the image is also visible: