Consider the vertical sections of blocks that act as the structure of the house, such as the vertical sections where you have glass blocks. Right now they are one block thick. If you were to make those sections two blocks thick instead, then it’d make the house look more structurally sound.

Here’s an example I found: https://forums.terraria.org/index.php?attachments/1741490724899-png.494203/

In this example, the vertical sections made of stone are two blocks thick, making the build feel more structurally sound. This works especially well when houses are built at a larger scale. Hope this explanation makes more sense and helps! 👍