Looks great! and you got it lined up or aligned perfectly with the chrome trim rings around each gauge - nice work and bet you could sell a lot of these if you put them on this site or EBay..
By the way the Dec 3 edition of Nature there is an article about folks at Cornell have figured out how to make real Mother of Pearl but probably a few years out but here is the article
http://phys.org/news/2015-12-materia...her-pearl.html