cool stuff, i like your progression and urge to draw - gimme some
im drawing with charcoal and chalk atm and i wanna let u try sometime that im looking into atm. im currently studying drapery, previously heads.
if u get something that has sharp edged shadows, apply the chalk and charcoal on heavily next to each other, blow away the excess dust (away form the bit ur drawing) and run your finger along the point where the white and black meet a few times. u should be left with a black and white divided finger and a smoothed line from black to white. i'd like to see what u come up with