Various Regional Maps (need help with roads please)

[Neyjour]

Here's a quick update on the barren/lava zone.

I thought the darker texture would be more problematic, but it wasn't... Not sure if I did something different, or if it's just because of the colour. I'm gonna go back to the swampy/plains zone and try again. I might have missed a step (been tinkering with these so much that I haven't made notes of what I did).

After that, I'll start experimenting with the opacity on all of them.

[Neyjour]

I'm really liking the carved effect I've got now, but I'll give the dots and dashes a try. If it works out well, I could easily offer both versions of the roads, so people have a choice of which one they prefer.

Also, I was thinking...after drawing the dots/dashes, I could duplicate the layer and gaussian blur the one underneath for the outer glow. That way they can be manipulated separately.

Thanks!

EDIT: I just gave the dots/dashes a quick try and I'm running into a very strange problem. As I'm drawing the lines, the dots/dashes are visible, but once I start using the Knife tool, to cut away the filler pieces (I'm not sure what the right term is for that), the line turns solid... Any ideas what I'm doing wrong, or how to avoid that? (I'm using Paint Shop Pro