Well, look. Ships don't just happen. Someone produces them. BMM has a distinctive line in the Bret military, Bowex has a distinct line in the Perch and the Clydesdale (the other two are somewhat suspect)
This one? Doesn't look at all like any of those. Or have the weight necessary to Bretonian neo-gothic design in general.
Doesn't really fit the DSE products either. Eagle gunboat? Perhaps..but then, who made those?