NINGirl said:
Constructive criticism is very much needed.
Not bad for a first attempt. There is a lot of room for improvement.
#1 Nice subject, and interesting color contrast between your subject and the background. However, the flower is overexposed and out of focus. If you are using an automatic camera, find out how the focusing system works. You can lock focus, or recompose the subject so that the part you want in focus stays in focus. The dark background overexposed the flower. Most camera metering systems try to average exposure, which in this case did not work as well as it could have.
I like your composition except for the background. The chewed brown earth, and trunk distract from the picture's other elements. Try to find an angle that just has the lucious green in the background. That would also further highten the contrast between the subject and the background.
#2 Same comments as above. Again, the flower looks just a tad overexposed and out of focus. The chewed up earth distracts.
#3 If your going to put the horizon in a picture like this, try not to make it look as if your standing on the deck of a listing ship. Even it up. Again, a lot of distracting elements in the background. It looks like if you took a few steps to the left, the light pole would be hidden by the trunk. If you raised the angle of view, the fence and other elements would disappear.
Shots taken directly into the light can be very dramatic and interesting. No camera can hold all the contrast inherent in the scene, so you must decide what, if anything, should be properly exposed. Too many of these types of shot just let the camera meter decide. The camera will always pick something in the middle like in this photo. The tree is underexposed. Try the picture by properly exposing the tree (getting an even more dramatic highlight coming through), or let the tree go all the way to dark to empahsize its form.
#4 I think your best effort. Notice how musch better a flower picture looks when no distracting backgound elements appear. The picture does have a little contrast problem. The flower highlights are overexposed. Many times for flowers a cloudy day works better. A cloudy sky works like a giant softbox up in the sky to soften the highlights and reduce contrast. I also think composition could be improved here. There is a gap to the right in the flowers that could easily not appear if you change your angle, get closer, or try some other patch. The dead flowers could also be eliminated as well.
#5 Big light pole in foreground. Too much background stuff. Totally uninteresting sky. Wait for a better day with blue sky, and stand somewhere where the pole doesn't dominate.