All of the stages are very simple.
Even though the course is called a masterclass, it’s all about progress.
Sure, your colours might be a little different, the drawing may go a little out, and the underpainting may be a bit too thin. But these are all very small changes, the principles are still being developed and learnt, so even if you’re going ‘wrong’ you’ll still be developing as a painter. The first tutorial of the silver goblet only uses a couple of colours and then we progress these ideas onto the more developed main painting.