Ruffy and Ghosty visit the Pokemon Tower in Lavender City. Looks like playing around in the graveyard attracted new friends. Ruffy will probably be fine in his amazing costume, no one will think he isn't Mimikyu! Ghosty however went as Mega Banette...personally I don't see it.

Beautiful work done by Harmarist

If you like this make sure to go visit his page and check out the rest of his gallery!

Art (c) Harmarist
Ghosty (c) VoidShark
Ruffy is meeeeeeeee

Pokemon owned by Game Freak