Alright, here we go:
Somebody HELP ME, please!
Damn, this exercise of measuring proportions is hard. I'm trying to follow the lesson and do it at the same time, but the part where Mark finds out about the center line and middle line + the boundaries of the drawing and then spotting the joints happens too fast and is hard to understand "the logic" behind it.


I confess that I ended up "cheating" a lot, because I was constantly putting the drawing on top of the reference, and was doing that back and forth to get the placements right, but one of the very first few rounds was a complete disaster.
I'm using a Wacom Intuos Pro 4 to do it straight in Photoshop, but I'm missing something.
When I think about it, it felt like I got the center (vertical) line wrong, and with that, the entire drawing collapsed, but I'm not sure if it's even that or something else.
Any help/knowledge sharing will be much appreciated 😄👍
Thanks!