May I recommend using the Mesh Viewer program instead of posting the maps? Gives you a way to check and make sure all of the colors are where you want them to be before you put them in game too.
Here's a quick example of what it looks like once you pull it up. You can modify the background color and whether or not the axes appear or not to suit your needs.
Your skins do looks very nice though, off to a good start.
Thanks to all (I will try out that program) of course now trainz decided to do a database repair so now I am sitting here twiddling my thumbs waiting for it to finish if ever.