What a lovely big smile in Dean Lane, from an artist called Luke Petty (Instagram @lukesmile91). It is a nice big bold piece and has similarities to the work of Pref 1D without the wordplay element.
I have not been able to find out much about the artist other than that it seems he is British but has been travelling in Australia. Since doing this piece in Bristol and an earlier one in Shoreditch, it appears he has done one in Sydney, Australia. So I am guessing that he is back down under again.
At the time of writing (three or four days ago) this piece was still there and in pristine condition, where all around it has changed.A mark of respect.