Trim Maxx cartoons are funny because of their unique storylines and exaggerated expressions. Sometimes it's the witty dialogues that crack you up. Also, the way they play with common tropes in a fresh way adds to the fun.
In many Disney cartoons, the siblings have shared goals and face challenges together. Their relationships add depth and warmth to the stories. Sometimes they have conflicts but eventually resolve them and grow closer.
I have no clue. 'Hentai manga two heads' is quite an obscure and perhaps unconventional concept. It's hard to determine a theme without seeing the actual manga or having more context.
I have no clue. They might be characters or concepts from different art forms that have been brought together in an unconventional way, but without additional information, it's impossible to determine exactly how they relate.