Promoting web services using MetaHuman

I am developing a web service that uses characters created with MetaHuman Creator.
It will be rendered in UE4 and distributed via Pixel Streaming.

This project is in the research stage and has not yet generated any revenue.
However, we would like to turn it into a commercial web service in the future.

Is it permissible to post images or videos of web service screens containing MetaHuman on the Internet, or to issue press releases?