Thu Mar 28, 2013 8:32 pm by DanWoodier
These are all good starts, there are many different styles of drawing, this website is more for portraits so if you would like to learn how to draw something more realistic then Brian (the owner of this website) has some brilliant tutorials which can be found on the home page.
Two quick tips:
1) Don't be afraid to go darker, leave no area on the picture blank, white space should only exist as a highlight.
2) Use your pencil very lightly to put down the first layers of shading and use a piece of tissue or a blending stump the blend your tones, blend softly in a circular motion
Very good effort though, I like your style.
Treat others as you'd wish to be treated.