Expand Defensive Structures

We have basic defenses in the form of static walls made of wood, bamboo, and stone. We have them in varying sizes and decorative tastes; 'Mansion' being the most luxurious.

However we do not have the means to use walls beyond barricades. I would love to see the ability to add stairs/stairways and platforms, walkways, or other additions to make the walls more than just an obstacle to corral raiders.

I would like to see standalone towers that come in smaller sizes than 'Guard Towers' that can fit in theme with the expansion of defensive structures. They would be tall enough to be above walls and provide a better firing position but probably half the size of Guard Towers. Customizable where you can place lighting decorations or designate your own Guard post.