sketches

[m.j.]

Hi there! I´m still having problems with my drawings,no matter how much I try to be precise,the result is drawing thats not realistic enough. I know that I should be using soft pencils and I did on this one,but still that´s not it! Maybe it´s because of wrong shading? I did some head studies like this...
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... and I think that proportions are o.k. ... Here it is with reference photo...
I need help!
Any advice? What should I do?
Thanks!

[dessinateurimpulsif]

Thanks for your comment....If you mid-closed your eyes to look your drawing and the photography you have as reference, you will see that values are not the same and need to be darker in several parts....in the right part of the face for exemple...and the right hear to...take care of it, try to create volumes with graytones a bit like in sample pics which are here...
http://www.thegnomonworkshop.com/dvds/sro09.html
http://www.thegnomonworkshop.com/dvds/sro08.html
http://www.thegnomonworkshop.com/dvds/sro07.html