Also this year I took course on the Anatomy of the CG Lab school from the excellent teacher Leonid Ilyukhin. Leonid Ilyukhin was very helpful in filling the gaps in knowledge of such a complex topic as Anatomy. https://www.artstation.com/cglab
Sketch 2
Sketch 1
Silhouette and volumetric thinking
Proportions
Head and neck
torso
Arms
Legs