You mean the backgrounds, right? :) I don't use the camera's 'special effects' software and don't add blur afterwards (unless cleaning of noise counts). It's just the physics, or optics, to be precise. Macro photos have a very shallow focus (especially that I used additional lenses in most of these), which results in strongly blurred backgrounds. Great on one hand, because of the artistic effect, and frustrating as hell on the other, because of, well, depth of focal field that is extremely difficult to handle, especially outdoor and in hurry. It's matter of millimeters in time of seconds and all by hand, so luck has a lot to do with these photos...