Fill the Square Frame

One compositional technique that is can be useful is to fill your frame to the brims with your subject. Here are a few images that draw a comparison between a normal image and one that had the frame filled.

1-1

1-2

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3-2

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4-2

5-1

5-2

As can be seen, in some cases filling the frame makes for a better image than when you give the subject room. In others, having typical composition is unequivocally better. And in most, the better image is more subjective; square frames and filling the frame changes the dynamic of the image, which is more like apples to oranges than red apples to green apples.