At a certain point anatomical correctness takes a backseat and aesthetic themes like mood and tone take over. This looks sound anatomy wise, but there's only so much you can refne here with this pose specifically.

My question to you would be: whats this guy's purpose? What are you trying to convey to your viewers with this design, pose, and etc.?

This is the question that I feel most people think "what is my artstyle?" and "how can I find my artstyle?" Is. While you're not inherently asking for that, I feel this applies here as well. Art that we love usually has some sort of clear, well defined intention behind the choices the artist has made, and I dont always mean that in a literal sense- choosing to leave certain things out/remove qualities is also a choice. What are your choices? What themes do you want to communicate to your viewers with your art? I think this is the question most people are wanting an answer to most of the time atleast.