I really like the composition, and strong colors of both pictures. And as Bynx said, pic #1 does suffer from lack of DOF. Believe me, I'm no one to talk as I've struggled with it in almost all my close up florals.
I haven't tried Stacking yet, as you really need a focus rail to get it right, and I don't have one. Manually focusing at different points would require way better eyes then I have.