Sid, nice interaction and DOF. Good to see heads of both clearly...which is not always possible in these kinds of shots. I am surprised you got both that sharp at wide-open.
If you have more room in orig, would love to see some on top and bottom. I think a 8X10 format will suit this better.
Nice interaction and I like being able to see the difference between the adult and juveniles coloration. Although the images you usually post are spot on sharpness wise this one looks like you missed the mark a bit.