My knowledge of anatomy isn't to great, I've done sketches on paper and done studies in the past, but haven't got it right yet. Still, I'm attempting to make a spite larger than I'm used to.
The one on the left is an alternative. Where I think the line of motion works better. But overall I think it looks a bit sloppy in places. I've also tried to remove single pixel noise as much as possible, so if there's something that stands out to much let me know.
Here's the reference.
http://i.newsarama.com/images/JUSTICE-LEAGUE-15-variant.jpg
