the colors stand out and are different, but somehow fit well together, Im sure there is a word for it but I can't remember it. Also those mountains in the background are awesome, they look like those funky fantasy paintings from the 80s. The one thing that kinda bothers me is the guy with the bow, I think he's not really necessary to the overall composition, also the blue of his shirt disrupts the color harmony a little bit. In my opinion it would be more effective to just focus the eye on the gray of the dragon's scales and the helmet guy's armor. This comment turned out to be way longer than I intended, But amazing job for a "fourth or fifth painting.