What I would suggest is to make the shoulders in the one where he's facing south a little higher.
And as for the one where he's facing north, make his upper back portion wider. Also, I'm not sure if those are his feet or his calfs (the inner part), but they look kinda wonky to me.
Oh, and as for the front arm in both semi-sides, I'd say to line up the shoulder and the rest of the upper arm on the same line.
Other than all that, looking good. Nice perspective.