Anatomy Study - Torso - 1

High Res on my DeviantArt: https://www.deviantart.com/davidbock
Hello ArtStation dwellers,
the past days I've been working on my anatomy knowledge in the torso region, including a little bit of the arms. I've been following the videos on Proko's channel for input.
https://www.youtube.com/user/ProkoTV
He suggests doing anatomy tracings. In total there are 5 images on which I tried to make out the muscle shapes using muscle charts of the human body, outlining them and then naming them in Latin fashion and also drawing the muscle fiber directions. Please correct me on anything I got wrong during these steps. Some stuff is hard to make out and sometimes the charts seem to disagree with one another. So any input is very much appreciated :D
I will upload the next tracings over the next 4 days.
Laters!