Looks nice, may better than mine. Actually I never modeled a steam locomotive in 3D before this and was trying to stay in a "Low Poly" style when modeling it. I'm sure there are quite a few inaccuracies that people more familiar with the locomotive will spot, but I'm going for for a lower poly style and I don't have the proper references and resources to model it 100% to the prototype. That C-21 looks really nice though, my model isn't really intended for any train sim but I may try putting it into a few lower end game engines to see how much its lower poly style helps performance wise.