Still, I have some remarks (in no particular order) related to the SB style application:
-the hull is supposed to be slightly darker than the superstructure (even if actually they are in the same shade);
-in SB black color is reserved for outer contours and edges at right angle (90 deg.) - if the - for example - walls of the superstructure met at an angle other than 90 deg. the line separating them should be in less-than-black color;
-You have to avoid double black lines - in case of gun barrels they are allowed only for certain calibres (in the 40mm range) - guns heavier than that need to have barrels 3-pixel thick - same applies to other elements (like that thing between aft funnel and aft mast);
-upper parts of the masts (esp. at the level of crow's nests) look like they are being made of single piece);
-railings need to have vertical lines spaced with 5 pixels between them and 2 pixels between horizontal lines;
-we don't use blue (or any other than white) background;
-portholes on ships that size are usually drawn bit larger (2x2 pixels of "blue" part) - regardless of the precise size in real life.
(and perhaps some more issues I don't immediately notice)
Thanks for your comment. Will get on those issues as soon as I can. As for the background that's just a temporary fix so I have a solid background to draw on instead of that checkerboard pattern they put on when there is no background. About the black lines, I will resolve the doubles, but are singles alright, or should all of the gun barrels be at least 3 pixels in diameter?