Don't overthink it. Less is more.
Since this page has to exist based on stakeholder demands, make sure it communicates clearly and effectively.
If the main purpose of the page is to inform the user that the server received their data the message you have now is OK, but could leave room for doubt. State that the data was submitted successfully (or what they can do if it wasn't).
What is the context around this page? Is the user supposed to be happy their data was submitted? Or are they likely to see this page dozens of times per day so it will become merely a formality? The tone and design can match what you want the user to feel.
There is probably a good chance that a user would close the browser tab at this point if they were done, but having a link to start over is a good idea if it could be a reasonable use case. If you want to encourage people to use the link you could style it like a button or in a way that resembles how the form was initially started on a different page. The goal should be consistency in how new forms are started so that users can tell what their options are on this page at a glance.
Beyond that, there is room to add an element of delight to this page, but it depends heavily on the use case for your application. You probably don't want a happy animation if the form contained data about a deceased loved one, for example. Even in that case, you could still use your app logo or some elements in your color scheme to create a reassuring sense of trustworthiness.
No matter what you do, if the user can take one glance at the page and understand what happened, that's more important than it being fancy. It's likely they won't spend more than a fraction of a second actually looking at the page, so any extra stuff you add shouldn't detract from the message you are trying to convey: there's nothing else for them to do.