mmmh... try to add in the details a link to the reference, maybe this could help people understand the shaping...
Probably due to foreshortening.
I used a photo reference, and sketched it out on paper beforehand. I don't think I made any mistakes, but I'll check over the reference.
The big mistake here would probably be in the feet bending too far if anything. I exaggerated a bit there to make it more dynamic.
mmh... Anatomy looks a little odd on the chest and on the legs... The first one is simply too long... As for the legs they look of a different length and with too low knees...
you should adjust it, because it's a nice style...
Wow, that's a great simplistic sort of style, the hand looks odd but otherwise I really like it.
The reference is a photo of myself and last time I posted a photo of myself on the internet, all hell broke loose. I'll PM it to you if you want.