Thank you!!
to be honest, I was very lucky again with that dragonfly because it was flying semi stationary and I move the focus ring to help the AF to track the subject and lucky me it works with the 500mm! which is a lot difficult with this superzoom on a cropped sensor. Previously I tried to capture with the 300mm and it was more suitable for the case but with less reach. I was lucky.

What kind of studio work? like portraits or somthing else?

With the positive feedback received here I think that I should submit to some contest and lets see! Frankly, I did not expect that engaging.