Yes, though your drawing skills show promise, you still need to consider how actual ships are designed and built. For example your warship, with that very large gun mount so far forward, the 'sheer' of the hull would make it impossible to load it from below; and even if that was possible, you'd have so much weight on the bow that the ship would simply nose dive to the bottom if put to sea. It is really up to you, but I doubt if you'll receive much interest until you apply some rudimentary 'rules of thumb'.
That apart good luck