We were looking for color, now let's look for shape. We've already looked for triangles on tookapic, but some of us weren't here yet. We can take this topic literally, by simply looking for a geometric sign around us or by creating a triangle in a photo from three objects, people. If you try this second method, you'll see how powerful this method of composition is, depending on which side of the frame the triangle is directed. For your own exercise, subtract or add an object, 2 and 4 don't have that much power anymore, right?