I know when I made my one the two biggest problems I had were getting the shoulders to look even slightly decent and then getting a chest piece to fit on the bigger body I was using.
I didn't really nail it or anything, but it looks cool that hes a bigger figure compared to the other clones I have. I also added ankle extenders to make him slightly taller.
It wouldnt take much for HT to do this right, and if they did, we'd all be buying a bunch of these guys. I have faith they'll sort it!