Guess who this is inspired by?

We now have a wall at school that every month is going to be painted over so that the kids can make a mural based on the "artist of the month". So, can you guess who the artist of the month is then?

I'm pooped today. I expended too much energy in my lessons at school today. If there had been weighing scales measuring effort, the whole class combined would have been needed to balance out my contribution!