Hmm, it appears that the link you've got points to an html page on Postimage.org. I would guess that it has some magic html that blocks other sites from embedding the page (whether or not they intended that behavior).

You could instead try to link directly to the jpg entity on Postimage.org, which seems to be publicly viewable. I'm seeing this link as:

http://s16.postimg.org/l047d222s/20150825_020.jpg

or,



EDIT: BTW, I think Postimg.org may be trying to fake people out by placing a ".jpg" extension on non-jpeg files. That, or using some magic to detect if people are linking directly to .jpg files, and redirecting them. Either way, bad website behavior...

EDIT2: Yeah, now that I look at it, my link looks substantially the same as your link, other than the randomly generated subdirectory name. So Postimg.org must be doing something annoying.