I always loved Barry, very funny, satirical and a bit anarchic. I remember he put an exhibit in an Art Exhibition, it was two big boots, filled with custard, and entitled "Puss in Boots" !
I first encountered his work when I was a very young feller in the magazine Private Eye where he had a cartoon strip called "Barry Mackenzie" , I didn't always get the humour and references as a callow youth, but appreciated all his work in later years. The one character name that still makes me laugh, was the sleazy Union Rep type he invented , who he named "Lance Boyle" IIRC.
RIP Barry.