Later in 1971 it was decided to use 'oil painted' covers, not a new concept, but I think Look-in was the first comic to do it on a weekly basis in modern times  (I could be wrong).  At first having an array of artists in rotation, they later found a guy by the name of Arnaldo Putzu, who's mainstay of work was found on British cinema posters of the 60's and 70's, including the 'Carry On' series (Right).  Arnaldo soon became the regular cover artist.  He continued to do the movie posters whilst with Look-in.  I'm unsure what he is doing today.

Martin Asbury worked for 'TV Action' for a stint drawing 'Cannon', before he was brought to Look-in in 1973, to draw 'Follyfoot'.  Whilst on Look-in he was also drawing 'Garth' (Left) for the 'Daily Mirror' from 1976.  He later he became a storyboard artist, which he still does these days, and amongst his credits are 'Doom', 'Da Vinci Code' and the mega successful 'Casino Royale'.
 

John M. Burns worked on the comic 'Countdown', drawing an original story that had the same title as the comic (Right), and also drew strips based on the series 'UFO'. he left when the title folded in 72, and was taken onboard Look-in in 73.  His first outing was 'The Tomorrow People'.  He was, as a lot of the Look-in artists were, freelance (as are most artists), and still continued to work on newspaper strips.  After he left Look-in he joined Fleetway to work on '2000ad' and has remained there ever since.
 

There were other artists like Jim Baikie, who came later.  He worked on Star Trek too in the 1973 'TV21' annual, and later drew for teen magazine 'Valentine' (Left), drawing love stories.  He now works for '2000ad' and also drew for stable mate 'Crisis' up until it's demise.

Bill Titcombe came from Polystyle's 'TV Comic' were he worked for many years doing mainly comedy series.  amongst his portfolio were, 'Bootsie and Snudge', 'Dad's Army' (Below right), 'Tom and Jerry' and 'Barney Bear'.  His first strip for Look-in  was 'Man about the House' for the 1976 Summer Extra, before joining the comic proper to do 'Doctor On The Go'.

Harry North worked on 'MAD' magazine doing the covers, and continued to do this during his time on Look-in, he was taken on in 1973 and his first strip was 'On The Buses'.  Not sure what Harry is doing now.

Arthur Ranson was a banknote designer, then did lettering on cardboard boxes in the 60's, and as far as I'm aware Look-in was the first comic he worked on.  His first strip I believe was 'Settle Down now! with Ken Goodwin'.  Arthur is currently yet another '2000ad' artist.