Nude doesn't bother me at all, particularly when done as art. I can't see thr problem of the fairies. Card shops sell those cards with little nube baby butts all the time. Sexual content with children disturbs me in any form as I believe it does do harm in that in encourages the world to see children as sexual objects. In the case of theraputic issues,I don't see a problem though. Art as therapy is appropriate, and if the person isn't sharing it on the web it shouldn't be a problem that it's in the computer.