Your blue looks fine but there are a lot of birds in the way :) Hope they missed you with the ''bombs''. It's really cool to see them from this angle and see what the underside of their wings look like in flight.
To Bad at that distance they are out of FOCUS to a point ... should have maybe cropped these birds so that ones eye did not wonder which one you were shooting at .... plenty of blue though I have to give you credit there!