Thanks for the feedback, when it comes to the traditional vs. digital argument I'm actually much more experienced/comfortable with traditional. I've been using the digital tablet for these quick gestures as a way to get more comfortable using it, but if I plan on doing something that'll take more than ten minutes I switch over to a traditional media. I've stuck a few examples up on imgur.
https://imgur.com/a/Ye7aiWO
I've noticed the head thing myself and been trying to correct it. I've no idea why it goes so askew when I switch over to my drawing tablet but I'm trying to fix it, I swear. I'l take your advice and try more poses with a more dynamic twist in the spine, any idea where I can get some good references?