I used Blender Cycles to make this and GIMP for the final touch. I was inspired by Kent Trammell's tutorial on the realistic head series and made my own version of it. I didn't follow the process entirely and had to adjust for Cycles. I used my grandpa as reference to model and texture his face. I then sculpted for details and added the beard, clothes and library background. It's not perfect and there are plenty of issues, especially with skin and composition, but I think this is as far as I'll go..
