Invisible Cities: Argia Building outlines

I found a few shapes that I quite liked the look of for the shape of my buildings. They still look spiky stalagmites but I think I managed to make it look more like architecture. It's meant to look like the citizens of Argia carved into the stone, I think the sharpness look makes it look menacing. This is just the outline, but I think they are coming out well so far and I hope to expand more on this.