Welcome aboard, Ib!

I'm glad to see another stacker!
These are very good stacks. I hope these are stacks that went "pretty well". If these are "a mess", we will need to adjust our standards!
But it is OK to post some messes too. (Maybe they go better over in the "Technique and Technical Discussions" than here in the gallery.)
With luck, sometimes we can figure out what the problems are. Everybody learns from that.
I especially like your Arctiid moth. I have never seen one so colorful. Sometimes hair is a problem, but the stacking worked very well here. At web resolution, it is very hard to see any artifacts at all. Very nicely done!
I agree with Mike that the fly could use more light on the underside. But I never recommend flash for stacking. It is hard to position because you have to take a picture to see what the effect will be. Also sometimes flash is not uniform from picture to picture (depends on the flash units), and I don't trust the software to correct for that. I get good results with incandescent. Sometimes ordinary desk lamps, sometimes fiber optic illuminator. Especially at high magnification, it works great to use fiber optic illuminator with pieces of pingpong balls for diffusers.
Which stacking software are you using? What problems are you having?
And what more pictures do you have to show us?
--Rik