1. This photo is well composed placing the curved fish in the bottom right corner to lead the viewer into the frame. The 1/2000s shutter speed allowed for stop action on the water and the fish. I personally thing that including the whole bear in the frame would be beneficial.
2.This photo takes advantage of dense yellow foliage in each layer of the landscape. The yellow in the bottom left draws the eyes up to the angled tree on the right. The 1.6s shutter speed allowed for blur in the water, while the f/22 aperture allowed for crisp focus throughout the landscape.
3. This black and white photo takes advantage of the high contrast between the rocky shoreline and the water. The 1.3s shutter speed lets the water blur diagonally, and the f/11 provides enough depth of field to have the rocks in focus all the way up the shore line.
4. The settings on this photo are: Canon 5DII 85mm f/1.8 10s ISO100 Manual. This photographer did a great job getting so much depth of field with such a f/1.8. Or maybe this photo is a composite. It appears to me that the clouds could have been taken with the settings above, and then laid on top of the photo of the mountains, taken with different settings.
5.This composition utilizes repetition. The clouds/ steam are visible in 2 layers of the photo, and the snow is visible in nearly every layer (except the sky). A slightly higher f stop may have been useful to keep the horizon line in focus, however this may have required using a higher ISO, which the photographer apparently worked to avoid.
6.This photographer did a great job making the wildlife the center of attention, removing any other distractions by using a low f/stop (f/5.6), and using an 840 mm lens to tighten up the composition. Only the bird and the branch are in focus, but the colors of the branch are evident in the background, making the setting feel natural without being distracting.
7.This photo captures action well, placing the bears mouth in the lower right corner, and a 1/320s shutter speed to stop the action. I think this photo is a bit too sharp, exposing white specs and highlights in the rocks and water.
8. This photo takes advantage of the human interest in the color red. The foliage in the foreground and the brilliant sunset draw the viewers eyes in circles around the bull moose. The complimentary green colored trees bring contrast and break up the composition.
9. This photographer centered and focused the bird's face, while sacrificing the wing tips. I think this was an ok sacrifice, especially because the blurred wing tips tell us of action.
10. This photographer used repetition to break up an otherwise boring landscape. The polar bear in the foreground, and center of interest is mirrored in the middle ground. I wonder if a polarize was used to remove glare from the water.