I was quite pleased to see this the other day.
They've gone for a palette of earth tones here, just shy of including burnt umber and terra cotta. Based on this range of colours, those are the only additions I might have considered, but honestly, this looks pretty good. The bolder one gets with colour, in my mind, the fewer tones should be incorporated; I'm already impressed that the range already extends past Toronto favourites of black, through the ubiquitous grays, to white, and wanders as far as yellow ochre. I'm not being facetious; that already seems a step more generous than what we can typically ask for here.
In terms of would I have rather had bolder primary colours here? If only Hundertwasser were still alive I'd be wishing for a building (or a whole neighbourhood) with his signature on it here, so yes, bold can be made to work very well while still feeling organic… but typically I would rather see bold geometric on our more frenetic arterials. 'Art' is located on two collector roads, in a quieter area compared to much of the core. The earth tone palette works quite well here.