OK, When I viewed you map and applied the Sheet effects, I was at first saying...it didn't do anything
But then I looked and saw that, AAAAHhhhhhhh, the reason some of the effects did not appear to do anything was:
1. The assests weren't on the sheets I expected them to be on.
2. The default effects are set for a map approximately 10 times larger than your own map.
Also, as I was adjusting the map with the Sheet Effects appropriately, I notice afew othe things on your map. The most important being the forests. Now, this is not a complaint, as this is a learning method here, and I am going to show you one of the coolest things about CC3. When you look at your forest symbols, they are kind of all over. Some that should be behind are on top, etc. The symbols of this particulr CC3 catalog, Isometric, that is, they are not a top down view, but supposed to give the illusion of depth. That said, the symbols at the 'top' should be at the 'back' while the symbols at the 'bottom' should be at the front.
To help in this, when you are laying down the symbols for your mountains, forests, etc, you should start at the top and work your way down. But, if you don't, and you find an area that you missed or want something else in there, amybe half hidden, CC3 has a tool to help you. Under the SYMBOL menu, you will find the option SORT SYMBOLS IN MAP. CLicking on this will allow you to now select symbols, either individually or with a click+drag option. Select the symbols you want to sort, and CC3 will put the symbols at the top to the back, and the symbols at the bottom to front. I made another post about this a while back, and I will locate the thread to show in detail how to do this.
Now, as to your sheet effects.
You could change the light blue coast outline effect and change it from SEA to SEA (CONTOURS) sheet. By doing this, CC3's default CC3 overland effects will apply a slight blur to the sheet, and make it look a little 'cooler'.
The effects for the RIVERS sheet are all unchecked. Check to activate the GLOW effect, and the select edit. Level the strength as 1, but change the radius to a much lower number, like 1. The default of 84 meant the glow radius was SO large, the only way to see it would be zoom out of you map until it was tiny. Play around here to see what looks nice to you. The sheet effects is probably the biggest boon to CC3 over CC2, and makes for some really cool maps.
As to you map's river's appearing 'dashed' it was as I suspected, a scaling inssue because of the JPEG options used to save the map. You made no errors there, and just an unfortunate effect of the computer.
Here is an image of you map with the above mentioned sheet affects appiled