So I've been using this site for a few weeks consistently and I've seen rapid improvement. 30 minute and 1 hour sessions will improve your ability to render bodies . awesome. super cool.
now...
I am into drawing comics. while my human anatomy has improved, my buildings, cars trees or any other objects need help. i'm wondering if there is a way to apply other images besides human bodies to a site or program like this? so i could maybe even load my own reference material in, set the intervals and then practice drawing all types of things, thereby becoming a well rounded comic artist. does anyone know of a resource like that?