Greetings, welcome to the Forums.
Some of your English Cherry-Laurels (Prunus laurocerasus) have lost many leaves higher up, but still have healthy foliage near the base. Others look healthy all over. My first thought is a watering issue. What is the watering history and drainage like for these shrubs? Also how long ago were these planted? It looks like you pruned some branches back. Is that because they were leafless?