My first take on this theme was Lobster Johnson, but I struggled with his goggles on separate occasions. That slowed my progress to a halt. So the other night I was considering other options, when the good Professor jumped out at me!
I wasn't sure how to illustrate his white hair & beard using just black & white so I just outlined it! I had a happy accident while inking the outline. My Prismacolor .01 pen tip split which gave me some really cool textures. I couldn't have done that with a normal pen if I tried!
Prismacolor & Copic pens on a comic backing board...
(Original artwork available for trade or purchase)