The image is not on an open profile, so cannot be seen other than as a thumbnail.
Go to the image page (where it has why it is not copyrighted, and other details) and scroll down to where it says "People and Things in the image" — beneath which there is a space for "Add person or free-space profile" and in the box there paste Space:Images4G2G
Just that, no bolding, nothing extra.
Once the image is on an open profile, it should be seeable by others.