great job on this one cairns.
the land is neat and the rails are excellent.
an overall nice feel to the map.
however i do have 2 things:
1. the bowler hat in UYU station looks weird and out of place. which is strange because the one in the legend looks perfect. i'm not sure if it's the glow of the number on it or it lost some quality when you made it bigger. i can't exactly put my finger on it.
2. the brasilia and buenos aires stations. i think you wanted to achieve a pop-out effect, which is great but i think it's not quite there. you have bevel on the brown-gray base leading up to the hexagon with the image, but the hexagon is flat. could you try a bevel or a shadow to the hexagon with the image of the station? alternatively i'd love to see a version with no bevel at all on the brown-gray column. it might fit better with the overall crispness of the land.