Had some time to go for a bit of a deep dive on anatomy to explore and experiment more. I felt like I wasn't as confident on this subject as I wanted, since until now I didn't really need to focus so much on specific body parts or have enough precision to achieve the results I wanted in the past.
Still a long way to go, but nevertheless, I had a lot of fun exploring, and will focus more on it in the future.
Some of the names that through their work I found some guidance for this study were: Christian Bull, Rafael Grassetti and Jared Chavez. A very useful book for this sort of work that I recommend as well is "Atlas of the Human Anatomy for the Artist" by Stephen Rogers Peck.
This project was sculpted in ZBrush, prepped for texturing in Blender, textured and rendered in Substance Painter.
Also, I always welcome feedback! :)