Here is some pictures that was helping me with the pose;

http://farm2.static.flickr.com/1123/552195247_0ed7feb713.jpg?v=0
and
http://www.pet-art.net/images/jumping_white_horse_big.jpg

And here is the wing tutorial I used to the wings:
http://www.ratemydrawings.com/tutorials/animal/374-How_to_Draw_Wings.html

and here is the participating -one