We all have some qualms with the current building style. Just some suggestions;
Bridges
With water gaining more functions, bridges can be more functional. Two types can be made; Simple Wood bridge (Rope suspension-style which uses thread from the Weaver), and the Classic Cobblestone bridge, which looks like an elevated bridge slightly.
Building Height Change
A maximum of 20 of the blocks seems good for walls. Good for those who don’t want to make tons of platforms just to have higher walls.