Fine complimentary colors here. Cool perspective on the train. The sky has such a lovely blue that my eyes would like to see a bit more of it in the pick. Looks like you had challenging lighting conditions that left you a little bit of bright blow-out and then shadows on the front of the train. IMO a little tighter focus and maybe a little more crop off the bottom might have improved the shot a bit.
I like the angle of this shot. The deep blue sky is a nice contrast to the yellow engine. The right side of the train and sky seem a slight bit blown out.