newest goalkeeper drawing:
http://dl.dropbox.com/u/63276563/goalkeeper%20ciws.png
also, you NEED railing at your bow, otherwise your crew will be washed off in the first wave that comes over (and believe me, there will be a lot)
why the bend keel? on most ships this is an straight line, curved only at bow and stern, and most of the time paralel with the design waterline.
your rudder is somewhat small, this one will only work at high speeds, so at slow speed you will have to manoeuver your ship on engines only.