For male characters, the important part is the upper body, so let's continue on to my favorite(?) section of this lect~ 1 - Well now that you have your head, draw the sloping-down shoulders. The red blocks/shapes here vaguely represent the muscle structur
Sorry but honestly these are like the coolest detail in male anatomy, the under-arm rib muscle thingies! Like just imagine a toxic green underbelly fading into a stripe of brilliant red before a solid dark grey-black!