Hi,
That looks like a great start! Good realistic colors!
It is hard to tell from the angle the screenshot was taken in, but I assume you repainted the TgPcDx files from scratch, based on the original engine's ones? If so, you should have a look at the RW F unit Repaint Template textures kit Marc Nelson has uploaded for all of us at 3DTrains. They are much easier to edit, as they come nicely layered with all the grilles, windows, etc. masked out so you won't accidentally paint on them, and the rivets and stuff also stay intact without you having to do anything about it.
Download is here:
http://www.3dtrains.com/forums/index.ph ... opic=16671 (requires registration)
To edit them you only need Photoshop or any program which can open .psd files (Paintshop, Gimp, etc.)
Cheers,
Michael