/ic/ - Artwork/Critique

*ahem*
how do I implement perspective into my own drawings?
like yeah I can draw a cube from any perspective but what about the human body?
Every anatomy course I've seen when the artist draws a human, seems like he doesn't care, just draws the anatomy then gives it details by looking at a reference.
Also, what about the the proportions?
they say that men about 8 heads and women are about 7 or whatever, but they also don't mention them while drawing.
like only in the first lesson, they say "oh the heroic body is about 8 heads tall" and then they completely forget about it and just draw without ever mentioning it again? am I missing something here?
am I supposed to draw a line and measure the body every time that I draw?
some courses doesn't even mention them at all?

I'm not sure if this is the right place to ask this question, but how do I implement perspective into my drawings?
like yeah I can draw a cube from any perspective but what about the human body?
Every artist I've seen drawing a human seems like he doesn't care, just draws the anatomy then gives it details by looking at a reference.
Also, what about the the proportions?
they say that men about 8 heads and women are about 7 but they also don't mention them while drawing.
like only in the first lesson, they say "oh the heroic body is about 8 heads tall" and then they completely forget about it and just draw without ever mentioning it again? am I missing something here?
am I supposed to draw a line and measure the body every time that I draw?
some courses doesn't even mention them at all?