Paul Lasaine is a production designer working in the film industry. Looking at his blog, I would say he's more in the animation industry.
He has work on a few films which includes Surf's Up, The Prince of Egypt, Shark's Tale, Lord of the Rings and many more. On his blogs, he post a generous amount of concept art from these films. They are mainly on environment paintings. Additionally, he shares a few digital painting tutorials as well.