Lovely incoming flight pose, and I love the slight head turn straight towards us. You did a good job on the noise considering the large crop and high ISO. I wouldn't mind more room at right and below. The BG trees are mildly distracting, and my eye keepes going to the trunk growing out and above the front wing's bend.
Daniel's comments are spot on. Still you did a nice job of capturing the birds dramatic wing position with enough motion blur to show action. I also like the detail in the face with good HA.
Love these shots with BIFs looking almost directly at you. Background is a problem and wish for more space below and to the right. Great sharpness against the busy background and nice wing blur. JR