Thanks Hrishikesh and Erin for your views.
@Erin - The leaf in between was not distracting me much untill you pointed out
I felt the leaves were distracting in color version..it was on darker side as this was shot under shadow. Hence converted to B & W. Also considering the shooting condition(Size of the butterflies, their activity and the light) i was extremely happy with this result. I dont think i could have got better DOF while shooting. However i think it could have handled better during PP. I will process it again and let you know the result. Thanks again.