Hello @Captain-T-J-0,
Without sophisticated editing and merging with something like Photoshop, the only option is to take a new photo where the animals' heads are on the centre line.
As you've found, Airbnb's software closes in on the centre of the main photo.
Aye, you won't be able to change this by cropping as the animals' heads will always be at the top.
Cropping won't allow you to move the top up as the programme would then have to invent something to fill in the top of the photo.
Steve.