How do I create a landing page for a survey that i created in Quick Base?

The low tech approach is to make a native Quick Base form with the words on it that you want.  The words can be done using a "text element' on the form, but you will get more flexibility if you create a formula text field because then you can use full html.

Then set that form as the one to use for your "everyone on the Internet Role in View mode.

So they use the regular survey form to answer the questions, and then in View mode they will just see the Thank You form.