@Cosmos (and other uploaders): When you use the parent-child relationship on posts, you might want to use the link to the gallery (or equivalent) in the source field, instead of the link to the picture itself. In fact, in general the link to the picture (in this case the i.pximg.net url) is pretty useless. With the link to the gallery, etc. people can actually reach to the author e.g. by clicking "like" or by exploring its other works. On pools just follow what the help page says.