Placing a symbol of Gay pride in front of the entrance to one of Warsaw's most important church's, is what it is a provocation
Rubbish. It isn't any sort of provocation and there isn't the entrance to any church there. Though there is on plac Zbawiciela and the Polish Rainbow put there for a year by the Adam Mickiewicz Institute was a success, despite the efforts of pond-dwelling villagers to vandalise it.
he north of Warsaw is far more
Clearly you don't know that bit of town very well. It's the home of the cultural elite - Warsaw's Hampstead.
install colored LED lights (solar powered)
Good it's renewable energy though I don't see how walking inside it would work unless they make pedestrian access to an already complicated traffic island. The maquette that was in the gallery didn't show that. Great idea though.