For me, the most interesting of them is the group of over 20 sculptures titled "Children and Ieyasu", representing children playing. Searching for their meaning, I learned that the group represents an artistic representation of the will of the Shogun Tokugawa Ieyasu, his desire for a future peaceful society: "Go for the right way and build a foundation of peace".
Here is one of these sculptures, titled "A child tries to break the snowman down. Another child starts crying"...
EXIF info:
Nikon D90
Lens: VR 70-300mm F/4.5-5.6G
Focal Length: 300mm
Aperture: F/5.6
Shutter Speed: 1/100s
ISO Sensitivity: ISO 200