Are the wave 4 gun port to small or the wave 2 gun ports too large?
I checked the models against the draughts
the following is an Ardent
Name:  Confronto Ardent.jpg
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taking into account that the picture is distorted due to the perspective I would say that the models is really close to the draught and is a good scale model, the masts are oversized and I remember how good the SoG hulls look when you replace the original masts with metal ones like in the wonderful works by Julián.