Here's some links to NG pictures on railpictures.net.... I suggest enabling pop-up blockers and ad filters before clicking on any of these links:
meter-gauge SD40-2T tunnelmotor
EMD DDM45
EMD G-22-U
Neat Comparision of GT-22-1 vs. a former C30-7
Another Comparision Shot
And my favorite, a 1:1 scale Garden Railway:
EMD SD40-2s
--
Chris Webster