If you were to do this i'd charge less per month. I'd also make an option to purchase the videos seperately. as has already been said, its really only going to viable if you include the resources with it that way people can actually browse the work, copy paste, edit finished examples, etc. I've been wanting to do some art tutorials like this sometime, but it really does take a lot of time and planning to get a proper curriculum in a very clear concise order.