I think this looks great for a reference study. The perspective feels believable and your forms are looking well constructed in their orientations. You’re on the right track. Just keep doing more reps of this and sprinkle in some more complex versions of the basic forms when you get bored of the basic boxes and tubes . Nit picks. (None of these issues are killing the drawing, i think you did a successful break down of your reference.) -Neck attachment and shoulder girdle. Try to attempt incorporating the attachment of the neck to the rib cage. Look at indicating the collarbone directions, and trapezius muscle shapes with a gesture line or two. -Joints. Try indicating the joints with a ball and think about how the tube forms of the limbs socket onto the ball. You don’t have to do this, but i find it useful and its kinda fun when you get the hang of it to incorporate into the mannequin. Ads a bit more solidity to the whole construction too. Nice study. Keep it up! | Artwod Feedback