Face Drawing No. 18

I have been working on this drawing of my dad for the 18th face of my 100 faces challenge. The challenge was originally meant to be to draw 1 face a day for a 100 days but I'm just taking my time just enjoying the process. A couple of drawings ago I put it out there to see what faces people might want me to draw. My step mother Kay suggested a picture of my dad. So here it is. Let me know if there are any other faces people would like me to draw.