The bird looks good against the pretty blue water. Wing position and eye contact are excellent. You might try to bring up the blacks a bit, and I'd move the bird farther to the left in the frame.
Beautiful flight pose... Agree with Doug, Gary and Randy on the blacks... I would also move the bird to the left, this "guy" needs a bit of nose space... but then you may also have to crop a teeny bit off of the right. GREAT FACE on this duck! I'm not familiar with your location nor with the duck species...but would love to know more! Really like how the black, white and brown come together on the left wing! Probably "just me" ... the "change" in water texture on UL appears a (little) odd?... but... then again "water does that". Cool "in flight"... love "the eye" he's showing you.
Good job on getting this flight shot sharp with a nice BG and good wing position. Agree I'd like to see the bird a little farther back in the frame so that he is flying into it rather than in the middle of it.