well shucks, thanks! to be frank i think my anatomy skills are like, decently ok? i think i have a decent grasp on like, form and stuff but the details like actual muscle structure are mostly made up/done without much thought. i dont really have much in mind in the way of actually books to check out, but im sure there's lots of resources on muscle structure and body mechanics you can find online, whether it be from those art resource twitter accounts or elsewhere! i'd say just make sure when you're drawing to be realllllyy keen on properly replicating what you're studying when you do, n really figure out the mechanics n that kinda thing