We were there together - I just "tripped" over this post scrolling while looking if you had posted anything new. These are awesome photos, much better than the ones I took!
It might be a good idea to exhibit there next year when it gets warmer again - I thought the location is unique with the spiral ramps going up, sort of like in the Guggenheim Museum (on a smaller scale, of course).

^{The "Bassena" in the Watertower}
I realized I never processed my photos - the Bassena is one of them, and I just fixed it now in Photoshop for this comment.