Points when drawing plantigrade legs

I want to add a few posts about drawing anthro legs again, as they are a tricky bit of anatomy to understand and draw. First off is a few notes on what to keep in mind when drawing human plantigrade legs. It's not a comprehensive guide, but I've tried to focus on some of the key messages that will hopefully help give you a few ideas on what to think about, whether you're drawing from reference or memory.