Sorry, but I just have to ask: Don't you think this model looks a little bit.... simple?
Please don't get me wrong, but I think you should do a little more practice into this. Just look at my (first) model here: http://80.95.161.114/shipsim/forum/index.php/topic,26777.0.html
As you can see by the pictures, I perfected it step by step, trying to make the shape more smoother (and I still am). You can do this in only 1 way: Practice, practice, practice!
Instead of making a ship which looks like it's made been out of cardboardboxes or lego or whatever, I was able to make some nice curves and smoothen those out with the rest to make the hull like it was made in 1 piece!
This is just a little advise, please don't get this like I think you stink in modelling.