boi ? what program/brushes is this ?

currently i'm using photoshop and my own brush set but once i master basics i'm most likely going to use sai for colors and then do some other shit in photoshop

cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool cool