Need examples of a good referral landing page UI [on hold]

I am working on the design and the workflow for the Referral system. Do you guys have any good examples that I can look at to get inspiration?

Here is the sharing landing page that I made:

https://secure.policecheckexpress.com.au/pce/Referrers/friends/103968

I had a look at:

• Airbnb
• Uber
• Grab
• Invisio
• Hotjar

Thanks heaps