I like the foot up pose, sense of peering through the bushes at him caused by the out of focus foreground elements, which frame him but for the most part don't obscure him.
One of the side effects of your lens/TC combo was the small f/stop, which does make it harder to isolate the subject from the background.
I think the framing is effective.
Yes, good sense of marshy habitat here. I too like the raised foot. A better HA would have been nice. Ligth seems a bit harsh? Looks like the grasses were sharpened along with the subject...if that is the case (which is my impression but I could be wrong) then I would go back and sharpen the subject only. Good stuff, and thanks for participating in this month's project!!:)