'Celestial' has more petals than the roses shown, as does that other pink alba, 'Amelia'. The foliage does have the alba shape, rounded, tooothed oval leaflets, but not the flat, matte surface. I would be inclined to think the pictured rose is a Damask, or possibly the alba/Damask hybrid, Belle Amour. In my yard 'Belle Amour' shows a salmony undertone in the color, but the light in Orkney may be different.

It might be the Damask 'Celsiana', which is often confused with 'Celestial'. 'Celsiana' throws out canes upwards of 10-15', ought IMHO to be considered a rambler, but the prevailing wind in Orkney might retard growth somewhat.