Art or Not?

We're now already onto the trainees teaching their last lesson: a 60 min one, at their current level, before they move onto teaching the other group. So my current trainees move to pre intermediate level and teach at that level for the remaining two weeks with P as their tutor. Hers move to me and teach upper intermediate for the next two weeks. In both my classes today, the subject of 'art' and 'art in public spaces' was the topic. I love street art and the way it changes the face of a city and stopped to look at this tonight in the little passageway next to the one where we live.