D&D scenery: Water pool for Tomb of Annihilation - Obo'laka's shrine. OpenLock compatible

I wanted a pool that I can put on top of OpenForge / OpenLock scenery so I can place it flexibly. Accordingly this is not the usual tile piece, but scenery scaled to fit on top of it.

I used the water in devonjones Build-a-Barrel and constructed a pool around it that would look good when placed on tiles, even with low walls.

These pools are representative for the Sun Pool and Moon Pool in Obo'laka's shrine, part of the D&D adventure Tomb of Annihilation. As such they're scaled to cover 4