I wrote this on another submission here about his death :

Inevitable of course. He was getting on in years and starting to show his age. He's an artist I started to really appreciate about 10/15 years ago when visiting the one of his big Royal Academy shows in London. The works were very large, very colourful and monumental. But as well as the huge colourful paintings, his smaller, fine and fragile line drawings of the landscape were also inspiring. I think he got better as he aged and the past 20 years have been his best and most productive. Lovely guy as well. I'll miss him.

In addition to the above, he wasn't a grumpy technophobe. This was most apparent with his iPad usage but he was also someone who explored the way artists used technology in the past e.g. the Camera Lucida, an optical process of reflecting an image from in front of you onto a piece of paper. You trace it out. He wrote about this in a book called "Secret Knowledge" in 2001 [1]. He was always interesting in conversation.

[1] https://www.thamesandhudson.com/products/secret-knowledge