I've found artwork like this before. Mostly a sticker with a face on it.
SE01
Later on in the same month in the same general area I found this set of paste ups by Jeremy. He confirmed that it was his work. I posted them last year but I didn't know it was his artwork at the time. He is making a statement about cyclists afraid of cars. This intersection is path to several busy freeways.
Jeremy Lynch Wheat Paste Art
I'm including this set of paste ups by Mike Salisbury to show how wheat paste is very useful to get a message across.
Another Trump paste up. Not 100% sure if this is by Mike.
Then in July I found a lot of these huge faces scattered all over Kensington Market.
I'm also including this paste up by James Sandham.
James Sandham Wheat Paste Pipeline Protest Art
I found this paste up in Kensington Market and I am not sure who did it. It could be an advertisement for all I know. I like the mystery.
This was one of the first paste ups I noticed back in 2016. Its by Kate Domina.