This is really an amazing map. The graphics are very impressive and well above the average of the website. I don't think the railroads are a problem at all - they are theme appropriate. The railroads that natty_dread posted really do not match the graphic style of this map.
Only slight thing that is bugging me is the glow on the title text- it's a little unattrative. Other than that tiny issue, I'm loving this. I hope this gets back on track!