Capturing the hunter

From a first sight I`am feel impetuosity of this eagle. I`am not good in photography so I can evaluate this only by way of viewer. I don`t know the way
it was made (camera type, lens used so on) but looks quite impressively.
So I`am an artist a little I can say few words about composition.
I like the foreshortening - it highlights the eagle velocity. And clear space on left (it also named "negative space") create a sense of boundless freedom of the sky. I suppose that the depth of field focused on body and some blurring on wings make this photo more vivid and realistic.
Examine captiously this photo I find only one thing can be improved on my humble opinion: watermark on the center. We all acknowledged about copyrights and other stuff but here it really cluttered the spirit of the image.
And Good Luck in wildlife capturing!