Mega Raichu X but i drew it in a way in which its pickachurism doesnt annoy me as much. Tried to keep changes small enough.

I gave him tails that resemble not only Pickachu's but its own too at least a tiny bit just like Gamefreak did it for Y instead of just slapping Raichu tail on it.

Also gave him fur/spikes thing going on so it would give off more Gorochu vibes and i feel like its unfair how cute fluff was resevered for something that i can only describe as Pikachu cosplaying Raichu.

Changed ears a bit so he gives off more of a horns vibe and so they are more pronounced to distinguish it further from Pikachu.

And the rest thats not the main body was colored orange because i really do not like red on my boy in such manner. With current coloration it feels off. So i gave him orange to reference gen 1 yellow sprite.