I thought this photo of musician/comedian Reggie Watts would be a nice challenge. It was!
Original, greyscale, posterized, and angled brush stroke versions.
The posterized version was really helpful for the initial color blocking steps. And using guides to double-check my alignments was crucial. I got lots of things wrong at first.
A little more progress...
And the finished portrait:
I added lots of details, used the liquify tool a lot, and threw a texture on top.
I'm pretty happy with how it turned out. Much better and more accurate than any portrait I've attempted in the past.