I know that some Pixelmon Adventure Maps follow a storyline and some even have a champion. I thought that, to make Pixelmon Adventure Maps have something for if you ultimately win against, why not add the Hall of Fame machines from the core Pokemon games(exculding Sun, Moon, Ultra Sun, Ultra Moon, as those don't have a Hall of Fame entry machines) so that there's an ultimate reward for defeating the champion. Paintings that are 4x4 in size will show the Pokemon of Fame entered Pokemon, with it switching every time the player beats the champion.
I have a couple examples from the core games:
This addition would help many Pixelmon Adventure Maps a lot more epic and exciting.
I hope you like the idea.