I like this - sharpness looks good, possibly contrast is a bit high, the yellows are difficult to get just right and they are good but I would suggest the stems are a little on the dark side. I sense the background is false but it looks and fits very well with the subject.
I also like the flower composition here, John. I love how you have the two flowers in the middle angled towards us. The texture on the petal is also amazing. I have to say that I do not connect with the BG though. It feels like it is way too far removed from the subject, but of course it's a matter of preference.
Nice. Good choice of flower arrangement (I know they arranged themselves, but you chose this bunch and the angle). The colors seem a bit oversaturated to me. That one little blemish on lower centered flower bothers me. I continue to be impressed with the stacking of images that you do. That allows you to get lovely detail all the way through.