I think I recognise these plants from my nursery days. If I`m right they are both varieties of Osmanthus. ''Burkwoodii'' leaves slightly bigger than ''Delavayii''
If they are, they are among the most hardy and sought after shrubs, for the fact they stay evergreen, are very very sweet scented and are happy in sun or shade. These two shrubs of yours are quite spindly, and probably struggle to get enough water there by the wall, so moving them and maybe pruning them back by half would help them. A jolly good drink will also help.