1.Any picture is just a two-dimensional representation of reality. If the colors in the scene are turned into shades of gray, from pitch black to brilliant white, other aspects of your photograph—shape, lighting, contrast, texture, tone—become the dominant elements.
2.Look for interesting combinations of color, light, shadow and texture.Morning light gives you warmer, yellow color. Late afternoon, or evening light provides colors with a hint of red to full red
3. Blurry: If you have a camera with manual controls, lower your aperture to a low f-number (wider aperture) like f2.8. Select either the Av (Aperture priority) or M (Manual) shooting mode on your camera to adjust aperture
4. Silhouettes:Option no.2
Underexpose manually by decreasing the shutter speed bit by bit until you reach the perfect exposure for a dark silhouette. (This is a good technique for digital camera users rather than the film camera users because of waste of film.)
Set your camera to underexpose automatically by changing the exposure to the minus side.
Sometimes cropping a subject to make the viewer focus on some specific detail is an extremely good idea. But other times, when it not about details, good to have the entire subject inside the picture and take a shoot as if the subject is just about to leave, but rather just about to come if it is not standing. If you are in hurry or not so sure about what you want and you also got a high megapixel camera, you can afford thinking about cropping after shooting in the post-editing process. Otherwise, get closer and if getting closer will scare away your subject (hehe) then use your zoom.