The 29-year-old from Adelaide, Australia, posted a number of images across the city earlier this year but had to call time on the public exhibition after being threatened with expulsion for "non-commissioned art activities".
Four more pictures in his 'comic strip' have been posted across the city. All are part of his project 'Emoticon Hamlet', which portrays pixelated figures quoting lines from one of the play's most famous speeches and raises issues about language and human emotion.
Mr Drew decided to finish the project after leaving the Art School, although he said he was not taking a swipe at the authorities. He said: "I'm just delighted to finish it. I wasn't really thinking about the Art School and it has nothing to do with them. I'm sure it won't be the last time I have a run-in with someone over the artworks. I've enjoyed my time in Glasgow and people have been very supportive."
While they were put up on alleyways and street hoardings without permission, the works have more in common with the hugely popular street artist Banksy than illegal graffiti. Mr Drew has carried out similar projects in his native city and in London, and at first the Art School appeared to be behind his activities. It even went as far as using some of his art in its promotional material before performing an about face.
The last four artworks can be seen at Renfrew St, across from the Citizen M Hotel, Dumbarton Road, Church Street, Scott St near the corner of Sauchiehall Street and Union Place.