I'm a little surprised he hasn't been approached by a Disney or a Pixar etc because he's got a real talent for stop frame animation film making. An absolute natural. And yes.....they must take him a ludicrous amount of time to complete, what patience!!
He's a firm favourite in our house. You should check out some of his other videos, especially the ones where he explains how he does these stop motion ones - and don't forget the lawn chair - a classic.