Raphael is cool but crude.
I imagine Raphael is kind of a punk, an anarchist. He reads all of Splinter's radical political texts. He's dumpster diving for Guy Debord and bombing ads and stuff.
Raph is an avid fighter but uses Sai because he can subdue the enemy without hurting them too badly. He also identifies with the weapon because it was born from a tool of the proletariat. He busts Leo's bals because he uses two swords.You can get the original 19x24cm drawing on Maruman art spiral paper over on my etsy
These characters were made by Eastman and Laird... fuck if I know who owns them now.