Help with first computer map

[Halo of Gnats]

Hello All,

Okay, I am trying RobA's Gimp Artistic Regional RPG Map tutortial.
I'm attempting to create a district in a city, where a river that runs through the middle
of the whole city, braids in this section. My goal is to complete the water, then
add in the city over the land areas.

As you can see, the land is not bad, but the something happened during the river section
(or sea as the tutorial labels it).

Any suggestions as to where the water went wrong? Thank you.





Namasté,
~Tim