While on Youtube, I found an old video titled "Thomas and the Rainbow Bridge". It involves Thomas and several other engines of different colors going to the Rainbow Bridge (it's called that because a rainbow can be seen from it). This had me looking at my own Wooden Railway collection and going through all the engines. I decided "why not line them up in the order of the rainbow?" so I brought all of my models of varying colors together for this pic.

Here are of them in order from Red to Pink-ish (Note; this is by what colors the models are in their wooden forms):

Winston
James
Rosie
Skarloey
Harvey
Dustin
Stafford
Marion
Terence
Stepney
Duncan
Stephen
Bill
Duck
Flying Scotsman
Henry
Percy
Luke
Sam
Whiff
Connor
Edward
Thomas
Belle
Ben
Culdee
Lady
Bertie
Rheneas

Now the neutral colors in order from brown to black:

Toby
Generic bullet train
Spencer
Diesel

For those wanting to see the video: https://www.youtube.com/watch?v=e4lE7N13IL0

This pic was a lot of fun to make.