The picture on the front page really made me laugh - what a fab picture
A couple of suggestions (feel free to ignore if you want):-
Get your phone number at the top of the page - it's your most important asset and needs to be big, bold and easy to find.
Take the ' out of 'see's' on the front page, it's just 'sees'
In Treatment Tips you need a 'y' on the end of 'natural nails long and health'
Your Gallery is great, but the pictures are wayyyyy too big, they're coming up so big I can't actually see the nail in one view, I have to scroll across and up and down to view it
Another Geek posted a tip about promoting sales. She went on a Business Link course and came back with some excellent suggestions (please forgive me for forgetting who is was - ban Trin), one was to always put your most luxurious (ie. expensive) treatments first on your price list. Everyone reads a price list from the top down and will usually go for the top items.
HTH