This may have been suggested before but there is a data pack that allows you to customize armor stands a lot more than vanilla by adding a bunch of new poses and the ability to move them on the X, Y, and Z axis. This will add a lot of potential for decorating builds. Here is the link to the curseforge page for the data pack which includes a video showing the capabilities of this. https://www.curseforge.com/minecraft/customization/armor-statues-datapack