Hi everyone! I am a long time lurker on this site and just now made an account. I love to draw but what gets me frustrated it my inability to draw from memory imagination specifically people. I've been using models I've found on Pinterest and while that helps, especially with shading on skin, it doesn't help me when I don't have a reference much. I need to learn the musculature and how muscles move in different positions. I can't find many anatomy pictures with the body part bending and other positions. I would really appreciate it. My sister gave me a sketchbook for my birthday and I want my first sketches to be special. And what could be more special then my first steps in realizing you can't just draw the outside without knowing the inner workings......something I should have been more open to learning before.
I was wondering if there were any websites with things like that somewhere on the internet. Preferably not anything pirated because I'm uncomfy with pirated things.
Thank you so much for your time guys!