the thing that i changed in the picture is the lighting in the picture and i crop the picture so you get more on the main part of the photo. The elements are textures and color the intensity of the darkness vs the light, the principle of design that this image uses is balance and proportion.
1i like the space to move composition rule because it explained how i can make my picture look like its moving.
http://www.digitalcameraworld.com 2 i like rule 5 viewpoint the picture showed a view from upper angle like your look down at it
http://www.photographymad.com 3 i like rule 1pattern it shows the picture as more organized.
http://digital-photography-school.com4 i like the rule of filling the frame it focuses more on the photo and its like cropping the photo so you see less of the background.
http://www.digital-photo-secrets.com/ 5 i like rule 14 where it shows the background of the picture as important it adds to the photo.
http://photofocus.com
