I think it looks quite nice
Very clean and the colors work well.
I've noticed a few errors but they're minor, and not really anything with the layout.
Like there is a random # in the middle of the "Treatments" page, between Facial and Hair, is that meant to be there? It confuses me
On the "Home" page is says "willrevitalise", it's missing a space.
Also on the "About" page, the second sentence/paragraph ends with a comma instead of a period.
I don't know if this is what you're looking for but they're things that stand out to me when considering where I'll book an appointment, as a perfectionist.