Here is a finish project of the Container ship that is going to be in blenderguru competition Underwater. I am very happy on how this turned out
I don’t want so sound too harsh, but I don’t like this image very much. The overall modeling and texturing are rather crude and the lighting doesn’t look very realistic and also doesn’t make very much sense to me (for example the transition between the foreground and the background).
I would also add some other things to the scene which would make the image look more interesting and believable, for example some waterplants and fish.
I’m really sorry! I’m sure that you worked very hard on this, but If I were you I would try to improve this image before you enter the competition with it.
Good luck though!