General Design Rules:
Payment Page (Order Summary)
Use "Your Price" instead of "Total" and make the number green.
Sample Order Summary in the Payment Page
Salsa/Bachata 101 Upsell Pages (including upsell page for a third 101 program):
Clean the spacing at the top and move the header a little bit lower.
Try to align the edges.
Choose a clean border around the video.
Make the video autoplay.
Show the number of spots/spaces available for gentlemen and ladies. (See the Updating Website to Show Number of Remaining Spots In Programs for the guidelines)
Move “No, thank you :(” to be a text link below the “Proceed” button. This is preferred because it’s out of the way and means there will be fewer form submissions. If it makes things difficult (for example, if you can’t pass info to the next page with this method), then instead include “No, thank you” as an option in the same table where they select their program.
Change “Total Cost” to “Your Price”.
Sample 101 Upsell Page (Bachata) 
Sample Upsell Page for Third 101 Program
For additional reference, watch Danny's video below:
QA/Testing
When updating the website and Jotforms, conduct the QA on all of the major browsers (Chrome, Firefox, Safari, etc.) and different devices (Android and iOS). If without access to iOS or apple products, consider downloading or using an iPhone simulator.