Source changes for image #508729

Image		Source	Action	Timestamp	User
508729		http://24.media.tumblr.com/1ba5cd13e5d7ff125217c7a3f9bbe948/tumblr_mxkyzz1dRz1t4ng57o1_1280.png	Removed	11 years ago	Background Pony #353A
508729		http://mlp-zat.tumblr.com/post/69572548062	Added	11 years ago	The Smiling Pony