Stoney, more detail, or a screenshot would help diagnose your issue.
Jean Bomber's scenery coastlines certainly shouldn't look "angular & straight lined" - do you mean you have green/ blue squares (angular & straightlines)?
If so, you haven't made sure everything in your SCENEDB/ WORLD/ TEXTURE folder is the same as what's in your main TEXTURE folder. If the contents of these two folders don't match, CFS 2 doesn't know which texture to use, so it gives you a basic blue or green or tan square in it's place.