/ic/ - Artwork/Critique

Is there somewhere public I can torrent New Masters Academy content? Does cgpeers have any If I ever get around to registering?

This is gonna sound really stupid because I'm really stupid.
I'm just starting out and trying to practice drawing from observation, but my long term goal is working purely from imagination. I'm having a hell of a time with measurements and proportions and the like, but it feels a thousand times easier when I ignore everything else and just focus on the negative space. So easy that it almost feels like cheating, am I actually getting anything out of it?

tldr will practicing and getting comfortable drawing through negative space at all benefit drawing from imagination eventually?