Made the changes suggested by Kevin.

List of changes I made:
1. Delete line "colleges can advertise on"
3. Change all fonts to the the ones on "Honest Pricing" section
4. Get rid of "Mango is elegant and easy" line.
Add: "Reach a global audience with Mango. It's  the most effective way </br> to advertise your college brand in China."
5. Make the email address field and subscribe buttons bigger, in both height and width
6. Add some space between tagline div and lower div 
7. Make the social media buttons circular
8. Get rid of FB icon
9. Change "Honest pricing" font size to 35px
10. Change "Get started" font size to 17px
11. Change the "About us" page background to white
12. Left align contact form labels

NOTE: The forms don't look like regular HTML and CSS; there are ASP-style <% %> tags -- I'm not sure I can modify those. Check app/views/contacts/new.html.erb (which has the forms for the Contact Us page).