Mmmhh, now I understand that you are trying to build a scene with all the ships involved in those battle.

I have been reading something about that a few minutes ago :-) (in spanish)

http://historia.mforos.com/681970/4572434-el-hundimiento-del-bartolomeo-colleoni/
http://www.lasegundaguerra.com/viewtopic.php?f=29&t=424

Also, I have visited your webpage. I like your renders very much. I´m waiting for the final stage :-)

And, can I asking how are you made the sea surface in your renders?. I´m finishing to model another ship - a russian ship Aurora- but when I try to build or put materials on it, the results are awful.
But the sea is pathetic :-) and your sea is awesome!