Hi Richard, it was during my trip last Apr 2016-May2016. I was walking around terminal 1 and terminal 2..lots to see there. The painting by the elementary kids was new to me as well, the other time I went thru Taipei in 2014, it was not there. I guess they have to change themes yearly to make it always interesting to explore. I was also looking for the orchid boarding gate, which I saw in 2014, it was not there this year, what they had instead are those long walkways with Phal orchids.
