The art of defocus got my attention thanks to Piotr. First I was thinking, how hard can it be. Well after trying today and I took about 50 photos looking to get it correct, I must admit it is hard. We have to let loose many things we find normal as a photographer. Also I found it hard to find out how much I had to go away from focus. Using a fast prime means that you can blur everything untill there is nothing left. Than the subject, it has to be recognisable . Compositionwise it is also not easy. From all the ones I took today, only a handfull survived the cut. For presentation, I find you have to make a very big print of them and look at them from a distance, than the effect comes out.
The following picture is defocused and overexposed. The effect it created , I like. But sure not to everyones taste.
I would say give it a try. You can be very creative .