These are images of some of my sketches in the past. There are hands drawing practice, detailed drawing practice, two point perspective drawing, drawing from direct observation and secondary sources.
realistic drawing from secondary source, 4B
EE and white pencil drawing on grey paper
one point perspective direct observation drawing, pen
self portrait from picture, 2B and 4B pencil
drawing from picture using grids, 2B, 4B and 6B
drawing from direct observation, primary source, 2B and 4B
detailed drawing from secondary source, 4B
realistic drawing from primary source, pen
glass drawing from direct observation drawing, 4B pencil