Well, it's a start.
But generally, ships are more curvy. The bow of your ship is like 4 polygons, while most of the ships we have now have bows that run in the 100's or even 1000's of polygons.
And generally, we'd like to see (way) more detail overall. Think of rims, edges, windshield whipers and so on and so on. Also keep in mind we are doing a ship-sim, so think of mooring points (usually little metal things on ships that small), places to hold the navigational lights, rudder-blades, I could go on forever.
And I think you used Sketchup? That's not really a great program to model ships with, it's nice for some simple buildings, but for ships, you need something a little more high-end.
And not to discourage you, but after eventually you get something done in a more detailed way, you only half-way there. You'd also like to do a low-detail one for in the distance, collision objects, seperate alpha objects etc. etc. It's quite a process.
In any case, good luck developing this further
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