Study : Do something then do it again differently

[Wolverine]

Hi. Im trying to improve my skills of reproducing my work because often I say to myself its not bad what I have just painted but I could never do it again. So I decided to draw one of the things I do mostly, faces. The first version took me about 2h maybe less and the second version took an hour, i duno :/
Anyway if anyone has any comments please go ahead.

http://gallery.cybertarp.com/albums/userpics/13624/wolv.jpg

http://gallery.cybertarp.com/albums/userpics/13624/wolv2.jpg

[Marcus]

it looks pretty good but the face length (vertically) seems to change, even though he is looking down, it seems his face retracts alot. I never have redone a sketch of mine..gotta try this out...

[Wolverine]

id say the most ive learnt is become to faster, i gave it another go and it took only 40 minutes. i encourage people to try it, its fun.

http://gallery.cybertarp.com/albums/userpics/13624/side.jpg