A sketch of an ageing ship of the line, a "Dreadnought". Once powerful and state-of-the-art, these ships have been relegated to menial patrol duties and many have ended up in the hands of pirates and marauder clans.
Thanks for the comment. As for tips on how I do concept art, my opinion is that the idea is the most important thing. It has to be original but still look functional. A good idea is to study aircraft, ships and weapons to get a feel for how they work. It's also important to come up with some sort of science and engineering behind the ships to add to the realism. It can be way out there but it should make sense to you. It's then a simple matter of putting your ideas down on paper. I usually try to do thumbnail sketches to have some sort of shape to work with before starting - although many of my best drawings just evolved as I was drawing. I use a light marker to sketch the initial shape followed by a medium width technical pend to ink in detail. Finally I block in the shapes with markers and then add line weight with a thicker technical pen. Scan and touch up and voila! Hope that helps.
Thanks for the comment. Glad you like it. The ram gun is just the name of the main weapon of the ship that runs its length and is used to destroy other capital ships at long range. The name "ram gun" is inspired by the battering rams fitted to the ancient triremes of the Greek, Roman and Phoenician navies.