Tips (you might wanna visit my town and see what I am talking about):
~Eugene's House: You can use 1 wide tile path to connect Patrick and Eugene's houses (at my village I did this to Zell and Bruce).
~Groucho's House: mimic the flower/path pattern on the left of Groucho's house on the right side too (most of my villagers house's have symmetric flower landscape).
~Move the path from Retail to the train station down by 3 blocks.
~Fence off Cookie's house with path (My Fauna's house is fenced off by 2 tiles wide path).
~Extend the path from Retail all the way to the Plaza
~Fence off Rowan's House with path. It's okay if the path is missing a bottom right corner (my Beau and Bam's houses are missing corners at their fencing tiles).
~Build a PWP between Fuchsia and Freya's houses (I built a PWP in between my Fuchsia and Tete's houses).