On the Level
You see a shot, aim your camera and take the picture. Have you ever thought of getting down to the same level as your subject?
In this example, the shrimp were at about waist height. Most people took their shots from eye level, which was above the animals. Shooting from the same level gives you a sense that you are right there with the shrimp instead of just looking at their backs. It also let me get more detail in the shot because I was able to get right up to the aquarium glass and get closer than if I had shot it from my eye level.
Anytime your subject is lower than your eye level, try squatting or sitting down to get to his/her/its eye level. You’ll see the world and your pictures differently by just changing your perspective.