Booking link thumbnail

Hi, I’ve now tested how my booking link appears when I send to prospects. The only thing I’d really like to improve is the image. At the moment it uses the generic Book Now graphic, whereas with my previous Calendly link, my own profile photo appeared in the preview.

Is there any way to change the preview image/thumbnail on my booking link so that it displays my own photo instead? I’ve already tried turning the SAGA branding off, but I can’t find anywhere to upload or change this particular image.

Thank you