You are only allowed to upload a certain amount. Just as 4Jeepn mentioned using a picture hosting site and linking to the pictures works much better and doesn't require any upload to WF.
License to kill gophers by the government of the United Nations. Man, free to kill gophers at will. To kill, you must know your enemy, and in this case my enemy is a varmint. And a varmint will never quit - ever. They're like the Viet Cong - Varmint Cong. So you have to fall back on superior intelligence and superior firepower. And that's all she wrote.