this was done by a local artist (mak1one) a few years ago, was a magical experience watching him do it, took him about 9 hours and lots of weed and munchies
He really loves to work with colors ! It had to be fun watching him.
I remember first time I tried to paint with graffiti bomb (that's how you say it ?), I felt like I had to learn drawing again lol.
It is very unique feeling though, and even filling a letter is satisfying, at least for me !
I'm not too familiar with the jargon, and yeah it was really an experience, he would have stayed longer but his girlfriend was impatient. Anyway I'm actually considering commissioning something new now, this piece is 5 years old now
just as a fun fact, he did everything free hand with a spray can, no stencils or any other apparatus