Some building tricks I have not seen mentioned yet
I have watched a lot of videos about building in Windrose but came up with a few tricks on my own that I have not seen mentioned elsewhere (that doesn't mean they are totally unknown, I just haven't seen them) so I decided to share them with you!
Partially buried pots (pics 1&2)
If you want a larger variety of smaller pots, consider burying them in the ground. Not all of them will work but most will. Start with foundation pieces around a hole and snap a small wall piece into it. Now build a foundation that will end at the bottom of that wall piece, remove the wall piece and place plant.
Next step is just placing another foundation into the hole, making it flush with the rest of the floor.
Lights embedded in walls (pic 3)
I usually prefer the cylindrical and rectangular lamps for this, they have a pleasant soft light and you can achieve a more "modern" look using them this way.
First place an object below where you want it, it works really well for me with the herb garland but other options may yield the same results. The garland has a "hitbox" larger than it looks and you can technically place objects on it, seemingly suspending them in the air but that's a different trick. You want to put the lights "on" the garland but back them slightly into the wall. That way when you remove the garland later, the light won't collapse but will stay embedded within the wall.
Fountains with lighting (pic 4&5)
This one I've already seen elsewhere but it's still in my opinion underutilized. You can place any light into the water in the fountain and it will still work, giving a nice atmospheric ambient look. The best lighting piece for that is the clay table lamp since it's the smallest one so there will be no flame peeking from the water.
Improve the fast travel bell and wharf look by building around it (pic 6)
If you have a dripped out base but the fast travel bell is still an eyesore of crooked wood, don't forget you can build around it without compromising its functionality. As long as there is a clear line of sight to the bell, it will still work, no matter what you add. It may require some eyeballing (you can turn off snapping by pressing "P" to get some pieces just right). This one took me just a few minutes and could be further improved, my inspiration was a beach cottage.
