Pretty good considering that you are not using (I think) a dedicated macro lens. It would be nice to have more details of the "subjects".
If you are really into dragonflies and damselflies I would suggest looking at a recently published book: "Field Guide to the Dragonflies of Britain and Europe" by Klaas-Douwe B Dijkstra and illustrated by Richard Lewington (Pub: British Wildlife Publishing) - ISBN 0-953-1399-4-8 A beautiful book with fantastic illustrations.