I saw this on the TV the other day. The graffiti artist was shown spraying this on the news.
He's a New Yorker with a nickname called Daze aka Chris Ellis.
Err. I think I can't appreciate graffiti. ;-)
But if you want to view his work, I zoomed in to the poster, so you can see where the graffiti artists are displaying their works.
It's at the Tanjong Pagar Distripark.