How monstrous!
This is a great pokemon art piece because the artwork overall is so good. I think the best part is probably how there are so many details. You have the pokeball and the drips of blood hanging around. What's also sweet is how it seems like everything has a different style to it. Ash himself has a rougher style while Pikachu's is simply demonic. It's easily the most fearsome Pikachu I have ever seen.
It's amazing how this started out as your first art piece as it's so good! I couldn't tell if there was crap coming from Ash's butt or Pikachu's. The sunken in eyes are truly haunting. The grass is nice and green and serves as a good contrast to what's going on in the rest of the picture. You know how to make pokemon scary.