Nice! This is a great study. Good for you for coming back to it. There is always something to learn within anatomy. To deepen your understanding, you could study the connection points of the muscles, and how each muscle is layered. For example, the infraspinatus, teres minor, teres major, and long & medial head all connect to the humorous bone and interlace each other (shown in the full color image). The deltoid blankets all these connections, so it should be indicated that it is overlapping these muscles instead of sitting next to them (shown in the black and white image from Artistic Anatomy). Hope that helps. You're doing great!

Hi @Shah Areq Mohaimen, nice work here. Very clean lines and most everything is in the right place. Just be careful with the muscles around the shoulder girdle -- don't forget to include the Teres Major, which is the muscle that is making the bulge underneath the Latissumus. Overall great job!

Looking good @Daisy Silly! I drew over your drawing on one side to clarify some of those smaller muscles of the back. Hope that helps!

Wow, this is beautiful. Great work. The only thing off is the teres minor -- it's going to be sandwiched between the infraspinatus and the teres major, barely visible in this pose.