Each part builds on the previous one. The rebellion starts the story and gives hope. The establishment of the farm shows the initial success. The commandments show the rules that are slowly broken. The power struggle reveals the pigs' true nature. The corruption makes the situation worse. And the final state shows the tragic end of the ideal.
The six parts work together in a very interesting way. At first, the rebellion sets the tone and the animals' dream. Then, the new order on the farm is formed. But as the pigs gain more power through the commandments, they start to abuse it. The power struggle shows the internal problems. The corruption spreads, and by the end, the whole story shows how the original dream is completely lost due to these parts interacting.
The six parts are like the building blocks of the story. The initial part of the rebellion gives the impetus for change. When the farm is established, it seems like a new beginning. The commandments were supposed to be the guiding principles but are corrupted. The power struggle is a sign of things going wrong. The growing corruption eats away at the farm's ideals. And finally, the overall state of the farm in the end is a result of all these parts evolving over time, showing how a utopia can turn into a dystopia.