I want to say more than just "Ah, lovely!", but I don't know what more I can say about this image.
There is art that is subject to critique and then there is art that is beyond critique, and this creation belongs to the latter category. Do you have one in which the lark is not preening, but is either just looking on or better still calling out? That would be a winner too! Like Sudhir said, just perfect use of light and fantastically controlled processing here. Thanks for sharing.