You can add a “featured image” to your virtual tour so it looks good when sharing online.
Here’s an example:
BEFORE & AFTER:
Here’s a quick video:
Here’s the same but with pictures:
Click on “overview”
Click on a Tour Profile
Click on the tab “profile images”
Upload the image you want to use a “featured” image
The image size recommendation is 1200 x 630 pixels so it will look good on all channels including Facebook / Twitter / portals etc.