Ну под видео написано вот это: "With the fourth series of Sherlock beginning filming this week, I thought it would be an appropriate time for another video!It’s the product of almost fourteen months of sporadic work, from modelling to texturing to rendering to compositing -- the longest I’ve ever spend on a single video. Hopefully it’s paid off!"Если я правильно поняла, мужик больше года это делал.