I'm not sure what the issue is with your
Rhododendron 'English Roseum' I only see dead leaves and the branches don't appear to have much life either. 'English Roseum 'is an Evergreen variety so I'm not sure what the problem might be unless as sooby mentioned, possibly a critter has burrowed beneath your shrubs and disturbed the roots? I hope you can save them but they sure look sad.