DR STRANGE  (18 Oct 2015)
art by George Perez at SO CAL COMIC CON 2015
from 
fireflyserenity1

DR STRANGE (18 Oct 2015)
art by George Perez at SO CAL COMIC CON 2015
from 
asdthing_72

DR STRANGE (2014)
art by George Perez
from 
actioncomicsandcards

DR STRANGE (Jun 2009), art by George Pérez at HEROES CON 2009 from AKA's Whine Cellar

DR STRANGE (2008), art by George Pérez from the Artist's Choice

DR STRANGE (1979), art by George Pérez, scan from joe-singleton

DR STRANGE (2001), art by George Pérez. From Comic Art Fans, commissioned by Richard Gutierrez.