Usually when people represent combats between man and nature, they make the man being the developed one, but here you made the dragon the robot one and the man the archaic one armed only with one sword hehe... I liked it
That's very original to see a dragon spitting oder things than fire^^ Gorgeous compositino and excellent use of colours and shading, what awesome details to this masterpeice !!! The grass is marvelous and the dragon concept is mind-blowing !!!