A change of pace from all these razor sharp shots
Did you just focus close on nothing to get the blurring?
It was shot on a 28 mil at about f2.2 and I focused on the tree branches, either above or on the reflection in the water, I can't remember. At a focusing distance of about 3m the dof was about 1.5m so I had to focus on a specific part of the picture that I wanted in focus. There was a little mist rising from the pond which helped.