Hmm, the elf looks very sorrowful while the dragon seems to be lightmooded. I like the idea that the dragon landed on this old mossy statue in the shallow water. Looks like he was just going to have a refreshing drink.
I like the expression of this dragon as well, and the face shape really helps add to it's character. The scale work is awesome and the detail of the rider is also amazing. I also like how you painted the water and the gentle waves upon it. Great job!