I recently tried out some more weathering using MIG washes. To tie it all together I use some Humbrol weathering powder, especially on the lower part of the car, very little on the roof. I'm still figuring out how to create a more realistic chipping effect on fading paint of some panels. That's all a bit tricky on the bare plastic. Also some color modulation was done by applying tiny drops of MIG Oil Brushers on few roof panels. I see quite some potential in that technique. I try to learn how to get the overall look realistic. It's not easy to get a convincing result - the sun light points out all mistakes!
Cars are Atlas USRA single sheated and Intermountain AAR boxcar. Wheels on SP 26661 are still OW5, ATSF BX-43 has already the more narrow P:48 trucks attached. Look how they sit under the car body - sexy! Jay Criswell provided the bolster and wheels to convert the Intermountain plastic trucks.
Please tell me what you think!