Line, shape, shallow depth of field and great use of available light. The tracks take your eyes all the way through the photo, awesome.
One Pinner Wrote: As a climber I can really appreciate this photo...plus this would be my dream job!!!
Classic shallow depth of field railings shot: Railings by Michal Dzierza, via 500px
Huge f-stop, extremely shallow depth of field. Nice work! #cat
40 Beautiful Depth Of Field Photography i love how the color is mixed with the depth of filed its also cool how all the pinnacles are balanced a cistern way.
Autumn tree: I like the angle of this shot because it enhances the trees large size. Additionally I like the shallow depth of field, focussing the lower leaf yet enhancing its colour with the out of focus background.
Shallow depth of field, movement through the circle, warm colors, unbalanced.