This is a nice picture of a sunset, but the sailboat is so small and hardly visible - thus, for the transportation challenge, it probably wasn't your best choice for an entry.
As far as the picture itself is concerned, the colours are lovely. I like it that the sun/reflections are not right in the middle, but to one side (thirds). I think that the same division in thirds would have worked for water/sky, in other words, if the horizon were placed at 1/3 or 2/3 down. Something to try.
I can't tell what you were trying to do with this, other than showcase a lovely sunset shot that happens, randomly, to have a tiny sailboat in the distance.
To me this picture is more about a lovely sunset and the reflection that it casts across the water (even missed the boat the first time), and I think that pretty much says it all - you are not really on the subject here. How could you have scored mroe, well by focussing on the subject, which would have ment getting in closer to make the boat the focal point (prehaps even as a silhouette) with the sunset as the background.
I like this photo very very much. The problem is the theme of the pictures. The little boat there looks very insignificant in comparison with the sea and the sky. Ok.. it's truth... that also sounds like a justification to put it in the category, but if somebody put me to choose a photo related with the current topic of Transportation... this definately is not a good choice. I will make my calification in order to respect the beauty of this picture.
Even though this is a nice image of a sunset, the subject (sailboat) is far too small to have any impact. If the sailboat had been in the bottom third of the picture and in the area of the sun's reflection on the water I think that would have impact.