Redline This!

I have absolutely no idea what to do with the foreground hind leg. I want to say the foot by itself thwarts me, but it gives me such grief that I wonder if I'm faking the anatomy of the leg in its entirety (using avian musculature as a reference).

I'd LOVE it if someone could tell me what I'm doing wrong here, hah...maybe offer an alternate placement of the leg in question.

Thanks in advance!