I'm mad I couldn't find any of his homer.. there were pics of everyone else that got one that night. :(
But here's one from Cincinnati.com from the Yanks/Reds game.
Mark Bellhorn throws from centerfield, where late day sun cast long shadows during batting practice.
There's also a pic of him throwing from second base on Yahoo. He has a weird facial expression but it's cause they caught him mid throw on a double play, aha.