The first looks more like a bouquet to me than like flowers in the garden, but what does it matter? It is nice, all the same. What filter did you use to make it this soft.
In the second, indeed, your autofocus seems to have played tricks on you, focussing the leaves behind the blossom instead of the blossom itself. It's a pity when that happens. Personally, I don't keep those photos. Plus - to be on the honest side - I don't like to see the use of flash with flower photos. Their colours always seem to go that tiny bit off... and the leaves reflect the light in an unnatural way.
The third one, however, is just beautiful. I would say "perfect" if it wasn't for the lefthand upper corner. You changed something about the background there and it shows oh! so clearly...
The third is