going back to construction practice

hello everybody,

here is another study.

I am very desapointed with the results... I analysed a lot the construction, but it seems that it was not enough.

I tried very hard to get the correct shape of the head, I changed a lot it during the process, but in the end it was still wrong.

the thumb is specially weird, the original drawing it flows very nice in mine it seems that is broken.

I am drawing comic book pages (I do 2 or 3 every month for the brazilian MAD magazine) where I try to apply exactly the same cartoon principles that we study here.

My doubt is if we can post this kind of stuff here (to have it criticized) or should I leave a link.

abraço,

davi