The RS-2 looks GREAT! You do beautiful work. Since you model the year when these were pretty new, how much and what weathering will you do?
Thanks very much for the feedback Dan! Really appreciate your stopping by and leaving a comment. As for the weathering, you bring up a perfect point - this engine will be only lightly weathered: road grime on the trucks, some light grime highlighting door seams and latches, but - being an Alco - moderate exhaust/soot from the stack and along the hood tops and roof. That should do it!