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Since you can only enter one, I will take it that the first photo on your post is your entry. If that is not the way you wanted to be, post a link to the photo you wish to enter here.

I thought it was use a statue,
Go and shoot its any changes in his shadow.
So I shoot so many changes.
If there is only one piece,
Then I choose the one.

It is like a military officer saluting !
(With a military cap) (lifting a hand to salute)

Perfect! And I like that you created a post with all the shadow changes. This is a good one to choose for your entry photo. 😃