Cotyledon flower

John, a very excellent stack. As far as missing focus in a stack, as long as you are photographing flowers (or anything irregular in shape} with the goal of sharp definition and a blurred BG, you will have missed focal planes occasionally. By substituting an artificial BG of one plane, or sufficiently blurred, you lessen the possibility of subject blurs, because you can close down for wider DOF. 

This image is also pleasantly simple and texture free, a very graphic image well suited for stacking. One minor occurrence, not particularly noticeable or even objectionable is the fact that all your top of stem area highlights are blown. Since there is no texture there, I guess it just doesn't matter all that much, except to OCD guys like me.

BTW, this is a very hard to find succulent. Is this yours, and how did you come by it?

Thanks Phil
Had a play with various tools and gave up in the end !

I got this at about 2 inches high from a local garden centre. Roots easily enough too.
Cheers
John

John, I love the angle and the colors that have for me a pastel look thanks to the high luminosity and the low contrast. I agee with Phil good suggestions, as usual.

John

You photograph such unique flowers !!!  Good hub on the focus stacking. Had to be difficult with this one

Best
Kathy