NewsgalleryBoris Johnson gallery 1BookmarkShareNewsByWill Ackermann09:03, 5 DEC 2014Updated12:04, 5 DEC 2014Boris Johnson 'plants' a tree to mark the completion of a £2million development of Northwood Hills1 of 9Admiring the new murals by graffiti artists Cosmo Sarson and Gordon Collett2 of 9The mayor tried his hand with an electric guitar at Stomp Box. Pictured with staff (L-R): Peter Jackson, Billy Shepherd, Richard Gaya and Jamie Gordon3 of 9Boris said he only knew how to play the opening bars of 'Smoke on the Water' by Deep Purple4 of 9Boris Johnson plants tree to mark completion of £2m development of Northwood Hills. Northwood Hills station, Joel Street HA6 1NZ.5 of 9Boris Johnson plants tree to mark completion of £2m development of Northwood Hills. Northwood Hills station, Joel Street HA6 1NZ.6 of 9Boris Johnson plants tree to mark completion of £2m development of Northwood Hills. Northwood Hills station, Joel Street HA6 1NZ.7 of 9Boris Johnson plants tree to mark completion of £2m development of Northwood Hills. Northwood Hills station, Joel Street HA6 1NZ.8 of 9Reader Paul Espley sent us this picture showing an alternative view of the Mayor's visit. A man holds a placard reading: "£50,000 spent on lightbulbs but still no step-free access". Last month, Hillingdon Council resolved to ask for cash to make Eastcote, Ruislip and Northwood stations step-free, but not Ruislip Manor.9 of 9