https://design.tutsplus.com/courses/digital-matte-painting-for-beginners
A digital matte artist, or digital matte painter (DMP), is today's modern form of a traditional matte painter in the entertainment industry. He or she digitally paints photo-realistic interior and exterior environments that could not have been otherwise created or visited. In this course, digital artist Brian Lee will teach you how to get started with digital matte painting. He will walk you through his process of rendering a realistic post-apocalyptic city scene using Adobe Photoshop.