I loved the website and colour scheme is popular at the moment, although it is sometimes not always best to write on black as it is difficult to read, think about your target market are they creative types. For me personally however I like it.
My feedback; include images on your nail treatments page;
put the image of lady gaga next to the minx and nice shellac image by this menu...and so on, each service needs to be identified with an image. Then when your clients come to the salon have the same images advertising these services, on your consultation cards, posters, appointment cards ect. Repeat these images, duplicate what they see about 4 or 5 times over a visit, subconsciously they will be familiar and you might find you get an add on service. Certainly next time it is easier for them to remember the treatment through an image than words.
Oh goodness I hope I have made sense...what I am trying to say is link in 1 service with an image, make it easier to remember and recognise, then reuse the same image when you see your clients, posters, flyers, cards ect.
let me know if i have lost you, will try and explain it again.
Sx