Here is a non-symmetric sketch, I am not really happy with this sketch especially considering the effort involved. Also you can really tell that a photo reference was not used, as there are problems with the muscles being flexed even though there is no or less weight on them. In addition there is simply problems with the anatomy in general that I am working to improve on.
To reiterate the main problem I had, was I had initially sculpted a t-pose I liked, but after posing I had to smooth it down and re-sculpt. Often I would find it still did not look right or was not dynamic, so I would have to smooth it back down and re-sculpt. Part of the problem could be my inexperience with Zbrush and anatomy in general. Regardless here it is.