A common theme is the combination of powers. Naruto has his chakra - based powers and the characters in 'Donten ni Warau' have their own unique abilities. Fanfics often explore how these powers can be combined or used in tandem to achieve a greater goal.
One great 'naruto and donten ni warau fanfic' might be the one where Naruto meets the main characters from 'Donten ni Warau' in a shared adventure. They could be facing a common enemy that requires both Naruto's ninja skills and the unique abilities of the 'Donten ni Warau' characters to overcome.
I think a popular cartoon anime figure often has an appealing personality. It could be brave, kind, or have a sense of humor. Also, the way it looks visually, like its outfit and hairstyle, can draw people in. Sometimes, if it's associated with a really engaging story or plot, that makes it more popular too.
It could be highlighting his policy positions or maybe satirizing certain aspects of his political image. Hard to say for sure without seeing the specific cartoon.
Common techniques in political cartoons include exaggeration, satire, and symbolism. These are used to make a point or criticize a situation in a visually impactful way.