Frank she's a beaut! Very impressive in every way. Great designs always result in great lines. Although I think I would like to see a little more attention given to the "capstan" (windlass in this case).
On a side note: I'd like to throw in my 2-cents about the seemingly overcrowded ship. While it is quite true that LEGO men aren't exactly proportioned properly, I think another reason she seems overcrowded is because she IS overcrowded. It's easy to forget that living on a man-of-war wasn't exactly the most comfortable of lives (for the lower-deck hands). Remember that on a ship of the line every inch of space was mathematically accounted for and filled with something. There are so many men packed aboard that half had to always be at work. What I mean here is that each man was afforded 14 inches (~35cm) to "sling his hammock." Now obviously a man is wider than that, but since only half the crew would be sleeping at once this was effectually twice that, still not much. To give you an idea look at this scene from Master and Commander.
Those are bodies hanging there.
So, yes. She is overcrowded, but then again she should be.