There is something delightful about a vine laden with full ripe grapes. It makes me think happy thoughts of the wine it's going to be :- )
I like the composition going on here with the angle of the branch forming a diagonal across the frame, and the use of DoF.
The only issue for me is not the quality of the shot - but the quality of the subject. Some of the grapes look past their best, and so do some of the leaves. If you could have taken some full fresh ripe fruits it would have just finished this nicely.
Looks like a good crop. I wonder how this would look if cropped in tighter from the left hand side - eliminating the leaves? Perhaps making it a vertical image instead of a horizontal. You have good natural lighting and the soft background keeps my attnetion focused on your main subject.
Sorry - this one doesn't do much for me. The mid-day lighting makes the grapes look flat and the centered composition doesn't add much interest to the photo. This one might be stronger with most of the green area cropped from the left.
The harsh sunlight doesn't do this image any favours. I think a shadier aspect and perhaps a closer focus on a few really lucious looking berries and you'd be in the game.