The consortium’s ships, including SF Line’s, used V18. Rosella photographs confirm the funnel. Coastal Ships & Ferries describes red with a black V on a yellow diamond edged white and a black top, but its Cinderella photograph appears to show the black only as the funnel exhausts. The FOTW flag is illustrated by Jarig Bakker from the Bryggan website.
Finland, Mariehamn.
Keep the explicit scope label independent; no alias or company identity is inferred.