I seem to fail making a proper image caption

ok guys, I am trying to create a caption for a free to use photo and a I want to give credit to the creator but I can’t seem to get it right.

Check it out, this is how it looks published

This is what I have written in the caption field

P.S.: This is the source link in case you need it

Is it a problem that the URL is that long?
I don’t know what I have written wrong in the caption field.

Any help is appreciated,

Thanks in advance.