It is a very interesting set. I too like the bird with his mouth open. Looks like he's screeching at you "go away!"

Number 4 is cool with all the tones of blue/green.

Number 6 has potential with that bright orange umbrella but there's something awry - not sure.

And I agree with MA on the last one as well. The birds without the breaking wave would have been less interesting. With the breaking wave it's a great shot.

Nice work!