As Fae, Nymphs are typically depicted clothed, although said clothing is typically a single very revealing article. Personally I'd go with clothed or even unique over just nude. I uh have no attraction to that kind of stuff so only see it as an element that can improve a story. And nudity done poorly could feel gratuitous and unsatisfactory, even for those desiring it for fanservice. So to make long answer short, if the scene calls for it.
