I think she looks fantastic! Hopefully you'll think so too. :)
The harp is a little bit of a spoiler, but not too much, I think.
I was considering leaving off her dress because I liked the design of her undies so much, but she just looked too naked without it. xD I think the sheer nightie worked out very well.
Art by Mavruda:
http://www.hentai-foundry.com/user/mavruda/profile