Thread:Kyurem147/@comment-5091911-20160419211003/@comment-5091911-20160419212628

It appears my suspicions have been confirmed. These are not official promotional images, the fan made artwork made and published by an artist on DeviantART. The only difference is the artist's signature has been removed and cut down to focus on just the birds.

Judging by the dates, these pictures were published around eight years ago before you uploaded them onto here six years later.

The original sources.
 * http://www.deviantart.com/art/Marahute-102690257
 * http://gunzcon.deviantart.com/art/Shan-Yu-Falcon-112031182