Here's the torso muscles section of "Structure of Man' (the figure drawing videos I am going through).
Basically, I drew a skeleton and we went through and layered on the muscles in 4 views.
However the coolest thing is the drawing on the lower right.
Starting with a flow line, we roughed in a figure, no real measuring. This was cool because at this point I felt line my head was ready to explode from all the muscles.
But when I started drawing, everything kinda fell into place. This shows me I am heading in the right direction and all this time I am spending are going to payoff.