Leading lines are lines within an image that leads the eye to another point in the image, or occasionally, out of the image. Anything with a definite line can be a leading line. Fences, bridges, even a shoreline can lead the eye. If can pair leading lines with a subject that is placed according to the rule of thirds your image should be very strong.
Rule of thirds Imaginary lines are drawn dividing the image into thirds both horizontally and vertically. You place important elements of your composition where these lines intersect. I've even made a little diagram for you
Framing is another technique photographers use to direct the viewer's attention to the primary subject of a picture. Positioned around the subject, a tree, an archway, or even people, for example, can create a frame within the picture area. Subjects enclosed by a frame become separated from the rest of the picture and are emphasized. Looking across a broad expanse of land or water at some object can make a rather dull uninteresting view. Moving back a few feet and framing the object between trees improves the composition.
Repetition is an excellent way to grab the attention of your audience and draw them into the image.
Contrast is an effective means of directing the viewer's attention to the center of interest. Positioning of subject elements to create contrast gives them added emphasis and directs the viewer's attention.
