This was for the first game I worked in, a shooter with dragons instead of airships. :)
They fought against a technology tyrant, and many of the opponents in the game were "DaVinci-based" airships.
This was meant to be the sprite for the last boss, but due to restraints, it was left out from the game. | 
The game had, indeed, an amazing idea and story, thanks to the amazing Game Designer that was ahead of the project. This is a game I'd like to work on without the asset restraints we had at the time. :)
Thanks for the comment!