The warm pallet you've used for the dragon's really makes taken seem to leap from the page, or screen as the case may be. The lack of, or perhaps the understatement of the eyes with the appearance of blood, conveys a sinister tone to what could otherwise be seen as a whimsical animal painting with nothing else going on. H. R. Giger (who won an academy award for his work on the movie Aliens) intentionally made his creatures eyeless so as to unsettle the viewer. The jaws of your 2 beautiful beasties are incredible & probably my favorite passage in the composition. They are cat/bear/shark like & very vicious looking. I can almost feel the heat of their breath. The white background is a little stark & doesn't feel completely integrated into the otherwise vibrant work. With that being said the black circle really focuses the viewer's attention on the truly critical pieces of your painting. All in all this is very good work & I hope you keep it up !