1) Great shot. Could have used a slightly faster shutter speed to freeze the movement of the moving birds, but there's no drastic blurring. Focus isn't as sharp as it could be, but generally I like this shot.
2) I suggest a tighter crop of this shot, the upper portion of the photo is mainly wasted space. Nice otherwise.
3) Good colours, two of the flowers are nicely in focus, but if you stopped down a bit, the bottom flower would have been a bit sharper. I'm not a particular fan of the central composition, but this image is pretty enough.
4) Sky is overexposed. Plane is underexposed. If you'd been the other side of the runway, you wouldn't have had the problem of shooting into the sun, and would have stood more of a chance of getting the exposure of the plane and the sky right. Nice composition though, you've left lots of space for the plane to "move into", but maybe you could have zoomed in a little?
5) Nice composition, but the depth of field isn't deep enough. The water is nice, but none of the foliage is particularly sharp.
6) I love the texture of the tree. I would have taken the shot further from the left, to get the sun obscured by the tree. I would have also either have taken a couple of steps back, or pointed the camera more toward the sky, to get the whole of the tree in. Seeing as the tree is silhouetted, anyway, I would have used a faster shutter speed, and metered off the sky.
7) More successful than 2), but I'd still use a tighter crop. The texture of the feathers is great, really nice and sharp.
I'm by no means an expert, this is just what occurs to me when I look at these photos. It seems like you have a good eye, well done with these shots. I certainly wasn't getting images these good. Have fun, and carry on taking photos!
