Note: The description contains minor spoilers for the plot of Y version.
My artwork for Yveltal, the Dark/Flying-Type Legendary Destruction Pokémon that is the mascot of Pokémon Y, and its cocoon form seen during the story of Y. The coloration and pose was inspired by its awakening cutscene, where it menacingly stands before the player and begins charging or absorbing energy. I really liked the way they made the red parts of its body look during the cutscene and wanted to try drawing it for myself.
Edit: Added a shiny version. The colors might look slightly off due to the way it was colored/shaded.