Technically I consider this to be a great shot - the colours are bright and bold, focus is really good and overall, well executed. The sky is a little bit dull, and the weather has made the mountains at the but a bit murky; but unless you're a supreme being, there's bog all that can be done about that. My principal gripe is that the wheel element of this shot is purely incidental, and isn't even that apparent. Notwithstanding, I do consider this a great picture..
I can't help bu think that the subject of your picture is the train. The shot is really great but the challenge is "Wheels" and the wheels on this train seem out of view. 5
the trucks are too dark, underexposed - the topic being wheels and all i should be able to see the wheels don't ya think? should have been o nthe other side of the tracks so the sun would be shining on the train.
Too much train, not enough wheel--the focus and point of the image should be the wheel, done through color, composition, or some other method. I don't see the wheel highlighted in any way in this image (which isn't a bad photo of a train, by the way).