Pablo was known to be active street artist in Paris between 2014 & 2016. It’s understood he lived in Bastille in the 11th district, which happened to be very close to a number of Banksy works; which started appearing around the same time. 

While it's unknown who Banksy is, or how many are part of the Banksy group. Speculation is he an old friend of the street artist, or even the artist himself. 

It’s understood Pablo left Paris by order of his mother, after the terrorist attacks
and a shooting outside his apartment building.

He spent the next few years living in London, before his work started
appearing in 2018 around the East of England and Norfolk coast.