It is focused and clean. The color palette is pleasant.
It doesn't tell me that it will be my best converting website without parroting what I just wrote.
The price per month comes up too quickly. I barely had to scroll at all to see your prices. Fix that. You need more info about how your site will help me get students for my class/visitors to my site. When I scroll down you have to drum up my fears that I won't get what you offer anywhere else and if I click away I am getting that much further away from my students, visitors, and conversions.
Not enough options at the top of the page.
You need triumphant images with good looking faces of people of many races and ages. Not enough photography.
You need to work testimonials in where they don't cause an immediate bounce away from your site.
Can't you A/B test your prices? Use limited time sales to find a sustainable price?