This is the letter M from Pixar's Monsters, Inc. (2001) and University (2013) films.

I would class this as pixel art but the slabs don't equal to it.

This was made on 09/07/19 and took me about an hour to make. Not exactly sure of the timings, but I did have a template to use which made the process shorter. Obviously tweaked it a bit and it definitely is the best currently out there (not to brag).