A few from cruising around Brixton this afternoon, these in the Stockwell/Brixton graffiti pit off Aytoun Rd
This on a path off Ferndale Rd
And these two are right next to each other on St Saviour's Rd. I'm sure the first one was done by the same person who did the face on Whitby St I photographed on page 45.
EDIT: and my guess is this, also on Whitby St is by the same person: