@Xyopq thank you so much! glad you can feel the space only through rendered images. it is glass, yeah. tempered one thick glass. and it's probably right, the maintenance would be very hard indeed, and we haven't thought about that.
The water walls are yeah, probably like our main idea about chilling people by passing through. Much rain in rainy season, of course. but the existing corridor right now at Bogor station is also an open space like that. so yeah.
Also, the committee has given us news that our design went in through big 25 out of 100 designs! not yet sure about the exact rank but that relieves us.