There are at least seven artists that have performed under the name "Redwood." In chronological order, they are:
These are photos from concerts where Redwood played, so they may be of other bands that played the concert as well.
Guilfest 2012 Jul 13 - 15, 2012 Guildford, England, United Kingdom Uploaded by Craig Hatfield
Buzzcocks
Neville Staple
Guilfest 2011 Jul 15 - 17, 2011 Guildford, England, United Kingdom Uploaded by Craig Hatfield
PiL
Steve Harley
Echo and the Bunnymen
Funeral For A Friend
Hugh Cornwell
Guilfest 2010 Jul 16 - 18, 2010 Guildford, England, United Kingdom Uploaded by Craig Hatfield
Guilfest 2009 Jul 10 - 12, 2009 Guildford, England, United Kingdom Uploaded by Craig Hatfield
Redwood / AC/DC Apr 6, 2009 Zürich, Zürich, Switzerland Uploaded by Gheger
Guilfest 2007 Jul 13 - 15, 2007 Guildford, England, United Kingdom Uploaded by Craig Hatfield
Latitude Festival 2007 Jul 13 - 15, 2007 Southwold, England, United Kingdom Uploaded by Skdotcom