Hello Michel,
Today part two of my response to your questions.
This topic is about building a 16th-17th century coaster in Dutch/Northern European style.
Researching, building, molding, casting a ship like this, and make manuals for assembling and rigging, takes me about one year. That means all my other activities on ancient ships will have to be layd down for a whole year.
For that reason, the first thing I do is trying to find out if such ships already exist in our scale since I do not want to produce what is already available.
Now you send me some images of what the Dutch call a Wijdschip or Boeier: De image bottom left looks like a gunboat with shelter walls.

- Kustvaarder .jpg (739.09 KiB) 3893 mal betrachtet
And of a Statenjacht which is a pleasure boat for the rich elite or for the admiral of a fleet.

- Statenjacht.jpg (257.86 KiB) 3893 mal betrachtet
Both the Boeier and the Statenjacht are shipdesigns from the 17th century and later on.
The Boeier or Wijdschip must have been present in the 16th century already but it is very difficult to find proper images of the period 1570.
So I would not recomment the Statenjacht for your renaissance diorama, its a baroque ship.
The Boeier or Wijdschip types, used for transport, are acceptable for the 16th century I think.
At 3th Dioramica somebody told me about the Dutch firm Artitec from Amsterdam and a diorama called DE REEDE VAN TEXEL build by them, which I heared of but I had only seen it on the internet. So this summer I went to the Waddenzee island called Texel to visit Museum Kaap Skill.
In their underground floor they have the biggest, best and most beautiful maritime diorama I have ever seen.
You must go there, Michel, although all of it is in scale 1:87 (H0 scale) and the historic period is focussing on the period 1660-1680 with Dutch ships of the Verenigde Oostindische Compagny, the West Indische Compagny en the great sea battles with England. But all the ships you have in mind are present and they are properly crewed with 17th century sailors designed by Artitec.
https://kaapskil.nl/