Very closeup images of Dandelions going to seed remind me of fireworks! One of my favorite setups for this is a m43 Panasonic Camera body with an old Canon FD 200mm f/4 manual focus macro lens. So with this setup I can go to 2x macro without extension tubes, plus I have a great working distance. It is sort of equivalent to a 400mm  macro on a 35mm format. This lens seems to work great on m43 bodies. Plus it gives a great working distance to your subjects. These are image stacked from 4 to 7 images at different focus points and combined in Photoshop.