I think it is unlikely East Dulwich Station could ever look as great as the Oval underground station which is very clean, has pot plants, soothing music and a bookcase where you can leave books you have read and take others. Almost the worst thing about East Dulwich is the big gap between the platform and the train. So difficult to get on the train if you are less mobile or have luggage, shopping, a pram or buggy etc. But your idea is a good one and I wish you luck with it.