This is a collage of my first three studies in my Drawing 1 class. The glass and stick one is supposed to show the difference between natural lines and ... I think mechanical or something lines. The spheres are each made with different techniques involving graphite and charcoal. The alien dude from District 9 is made as just the outline, then just value, then both and texture.
Sorry for the miserable editing. My scanner is small and unintelligent.
Btw, the third image of the prawn isn't getting scanned well, which is why it looks so bad.