Thanks everyone. I agree with you on the composition and crop. But can't help for the focus thing. I really should've tried with a very high ISO, e.g. over 1600 to have sufficient d.o.f., but just by looking through the viewfinder and pushing the d.o.f. preview button, the bokeh wasn't so pleasing, and I wanted those wings to be a bit out of focus.
Anyway if I see that dragonfly again, who really took me for some dish menu item

I'll try to shoot with your recommendations in mind.
Thanks a lot.
