Definitely some possibilities here. Do you have a speedlight? I think you could have flashed the RR tracks and gotten more detail in that area. The nearly-center bright spot is over exposed, and some other areas are underexposed. Does you camera enable you to bracket two or three shots? Try that, and if that doesn't give the foreground some detail, then flash it. Also, you have some unsharp areas. Did your tripod have some vibration in it?