I would love some feedback on this peice

http://rtellup.deviantart.com/art/Untitled-427575587?ga_submit_new=10%253A1389993511

you need to study more forms in 3d space
for example the eyes are too flat,imagine drawing the eyelids on a sphere
look for the book named constructive anatomy by george bridgeman should help you a lot
cheers
omar

thank you I will do that

Here are some great online resources that I use when constructing the face:

You should subscribe to his channel, Proko. It features lots of helpful tutorials and is entertaining to watch. :)