I achieved this effect where most of the metal poles were sharp using a small apperture. It helped that the time of day was bright and sunny and oh so very hot.
Initially I picked this photo as one of my favourites because of the patterns of the table. Then it hit me that the design of the table was by someone else, not me and I did nothing to make this picture a unique creation other than just photographing what was there - the creation of another. This is an important insight that made me realise that creative photography is more than what meets the eye.