Gunports on Dutch warships

From the Van de Velde drawings, we know something about gunports on Dutch ships in the period of 1639 to 1654. The Gorinchem is from a drawing of the ship in 1665. I would welcome corrections, as I am particularly uncertain about the Brederode. The picture of the Rotterdam is in Dr. M.G.de Boer's book, Tromp en de Duinkerkers, opposite page 49. The picture is so indistinct that I can't count ports.

Adm  Ship            Built Gunports
R    Aemilia         1632  13 on lower tier, 12 on upper tier, 6 on quarterdeck
A    Star            1644  10 on lower tier, 4 on quarterdeck
A    Vrijheid        1651  12 on lower tier, 9 on upper tier, 4 on quarterdeck
R    Prinses Louijse 1646  10 on lower tier, 6 on upper tier, 4 on quarterdeck
R    Gorinchem       1639  9 on lower tier, 8 on upper tier, 4 on quarterdeck
A    Fazant          1646  9 on lower tier, 6 on upper tier (2+4), 4 on quarterdeck
A    Leiden          1647  9 on lower tier, 5 on upper tier at rear, 2 on quarterdeck
A    Vrede           1650  12 on lower tier, 10 on upper tier, 3 on quarterdeck
R    Brederode       1645  12 on lower tier, 10 on upper tier, 5 on quarterdeckj
F    Groningen       1653  10 on lower tier, 10 on upper tier, 4 on quarterdeck
A    Edam            1644  10 on lower tier, 7 on upper tier (2+5)
R    Rotterdam       1639  10 on lower tier, unk on upper tier, 3 on quarterdeck