I have another couple of photos that, through my internet searches, I have arrived at possible identifications. The first I believe is Tetragnatha extensa, and was photographed on 15 June 2010 on the Portencross Coast SSSI in Ayrshire (appx grid ref NS176502). The link for this is;http://srs.britishspiders.org.uk/portal.php/p/Picture/r/view/s/Tetragnatha+for+ID/u/228/x/70d22449
The other (due to its habitat) I have a feeling could be Larinioides sclopetarius. This was taken at the Marine Construction Yard, Hunterston in Ayrshire on 25 June 2012 and the grid reference for this is NS186532. The link for this is; http://srs.britishspiders.org.uk/portal.php/p/Picture/r/view/s/L.+sclopetarius+for+ID/u/228/x/70d22449
Any help gratefully received.