My atempt at tracing and adding pecs to skelly

Looking mainly for the landmarks, and on more muscular people I try and add the anatomy but I don't know anatomy at all. Start with gesture so I can still get a more dynamic pose instead of a stiff one. Takes me a bit to actually see what I'm looking for on the body but I try to make every line with intention instead of just chicken scratching. Really want to control my lines. These took me 20 mins total mainly cause I was lost trying to find the landmarks. any tips would be very helpful.

Hi, these some of my two minute gesture drawings. I found myself on some more challenging poses to go over the time by 15-30 seconds but most were kept within the 2 mins. My proportions are off especially around the legs I tend to make them wider than needed. Any tips on what I can improve on and how to get my proportions under control are appreciated.

Hi everyone. Sorry for poor quality photos. So these are my gesture drawing. I timed myself 1 min each but spent around 15 seconds just looking at the reference picture. Any tips would be helpful as I don't know how to improve by myself.