Its a nice start, needs some polish though. Like the others have said, the lanterns are a bit dark at the moment. They look quite dull and don't really have that glowy appearance you'd expect. Something like this: Also something I like about this image, the water is flat. In your image the water is choppy and it creates a…
They could definitely have been more specific but it's true; especially if it's this rendered image you're going for as a final product. You could add some of the lanterns already in the air, floating upwards, and if you give it a proper skybox - a few stars, for example - it'll definitely all come together even better.