Brian Walker made one appearance in Smasher in 1990 (issue No. 2528), together with the Dandy Editor Morris Heggie :
… followed by two in 1992 (issue Nos. 2628, 2642):
… and just one in 1993 (issue No. 2672):
1996 DANDY SUMMER SPECIAL also sports this bright back cover with caricatures of the Dandy editor Morris Heggie. Not a self-portrait but still a nice piece to include in this series. I've got no idea who drew it though.