I've been working on story called "Constellation Draco". The story takes place in an alternate Earth in which all of natural history has been rewritten by creatures of mythology, such as dragons, fairies, unicorns, and just about any other mythological creature you can imagine. The world is mainly run by dragons and humanoid creatures, in a prehistoric era where the story mainly takes place. The humanoid races struggling to survive must not only deal with each other, but also face off against dragons just trying to survive in a harsh primitive world.
The Golden Smacklejaw is the largest recorded dragon of this world, standing over 30 feet tall with a 60ft wingspan. It also serves as a primary antagonist for a knight known as Acrocanth, who's constantly on a quest to take down the world's largest dragon and have his tale be known for generations to come.