Framing is the technique of drawing attention to the subject of your image by blocking other parts of the image with something in the scene.
The world is full of objects which make perfect natural frames, such as trees, archways and holes. By placing these around the edge of the composition you help to isolate the main subject from the outside world. The result is a more focused image which draws your eye naturally to the main point of interest.
Frames for photographs come in all shapes and sizes and can include shooting through overhanging branches, shooting through windows, using tunnels, arches or doorways – you can even use people (for example shooting over shoulders or between heads).
if you do use framing techniques you also need to consider whether you want your frame to be in focus or not. In some instances a nicely blurred frame will really add a sense of mood and depth to your shots (in this case use a large aperture) but in other cases to have your frame in focus can help with adding context to the scene (in this case choose a narrow aperture.