Princess Luna Starry Night

I had a two sided Princess Luna pillow from ebay (seller was from the middle east) about a year and a half ago.(seller no longer has an active ebay account) This is the 'front' side of the pillow, in it's current condition. I have been trying to find where the actual original full artwork is of this front image, but haven't had any luck. (The other side was young filly luna on a cloud listening to an ipod that reads 'new lunar republic' as the song, and she faces left) If you wouldn't mind, I would really appreciate some assistance in locating the location of the in-full original image so i can have a digitally saved copy of it. thanks.