Conversion optimization (clear and simple landing pages design) + preframing users to take languages lessons via Skype

All our traffic comes from organic search. We have 3000+ landing pages about different grammar topics. Each landing pages has links to related exercises (interactive H5P exercises) which are free, but as a user you have to signup to do them. Then we send weekly newsletters with grammar topics and a CTA to take Skype lessons (no improvements needed with this process, but the exercises should stay somewhere on the LP). Here an example of a landing pages [login to view URL] But our actual product are languages lessons on Skype with a real teacher. We have a public listing of teachers where students can directly book a lesson package. We want 2-3 clear and simple LP designs with a CTA to take Skype lessons (link to this page [login to view URL]). Which we can A-B test to identify the LP with the highest conversion. Elements to improve: - navbar - banner on top of body text - right sidebar - banner within body text (Adsense will be removed) - general "organisation" of the page - left sidebar (either collapsed or stay how it is) Our user need to understand that we do not only offer grammar content, but also Skype lessons with real teachers. Users must understand that the lessons take place online via Skype, the advantages (flexible in place and time, efficient, ...) and how it works e.g. you just need a webcam, headset and a stable internet connection.