Oh really : D! But portrait is really hard cause you have the people LOOKS LIKE he really is ! But goshh only TWO years ! You're REALLY GOOD !! . Ohhhh ! Im not familiar with those technics of drawing i only know the traditional pen (HB and others ..) aha
try a few different kinds of paper...smooth paper like bristol for tight detail, paper that's grainy for more texture...you don't have to buy illustration board! I use that because I use water on it and often oil paint, so it can't warp. Pastel paper can be expensive if you use the thick, sanded paper I used for this.
but if you're using pencil, try smooth bristol paper, comes in inexpensive pads
Those are always fun. They keep you on your toes. I like people who question everything, and actually think. Unlike Justin Bieber, who desparately needs to stay in school - maybe in Germany... sorry, couldn't resist