Is the project still in deep testing stages or are you preparing for release?
Because I think I spoke to the owner a while ago about the usage of copyrighted sprites and he said they're just "placeholders" until they're replaced, but I see they're still being used.
It might be time to start replacing those sprites, or at least stop advertising using them until they are replaced.
Other than that, some of the maps there appear to look nice (i can see a lot of detail) but they're too dark and the images are too small to see clearly.
I'd say it's good overall though!