Over at pak128 we have started on some new harbor tiles and new ideas for the harbors:http://forum.simutrans.com/index.php?topic=11531.75
Do you want to join and share what your ideas are?
Inspired by the work of Alex. Brose I have made a .pak with some harbor tiles.https://www.dropbox.com/s/7w0152dvb5c0k3h/Harbortiles192.zip
I hope the black (out)lines are in the right place.
Can you help me with the black (out)line on the Sheet piles
I found that the NS Canal is not centered so for the canal quay I used the EW
And maybe you want to lower the water level in the canals so you can see more of the walls from the quays.
and I found out that you can use the harbor tiles alongside the canal: