Damn. I grew up on Gren’s cartoons in the South Wales Echo. And for years my brother sent me his lovely “Welsh and proud of it” calendar, which always made me laugh. They didn’t produce one for 2007, and now Gren’s gone.
There’s a small selection of his work here. They’re a bit small, and it’s hard to make out the details that made his work so special. His trademark was sheep with slogans on their sides – you can even buy small pottery sheep in Welsh gift shops.
More of his work on the official site.