Sorry - saw your bump, but haven't been at my computer since... As no one else has responded here's the iPhone version of crit...
All nice shots (at least on my iPhone...) pictures all look crystal sharp.
My favourites are 3&4, but all are good.
Minor niggle is that number 2 is a bit too "high" - the birds are too near the top of the frame, especially relative to the space at the bottom.
That said, all are lovely clean shots.