bokane: Yes, useful, but we're still waiting for the big secret of the series - how do you get them to stay still while you focus stack?
its eyes are closed! duh!! ;-)
try to find sleeping insects or as mentioned above guarding spiders. I like eating insects to.
http://www.mdsign.nl/fotos/D300/MDS15826.jpgfor more closeups visit blog.mdsign.nl
the praying mantis you say you need stacking. You can also change the angle to get both mouth and eyes sharp...
What I miss in that photo are the pupils. did you stack it out or did it not look at you? It gives the critter a dead look imho.