Your choice of shrubs may vary between evergreen shrubs and flowering shrubs.
The evergreen shrubs may be broad leafed or needle shaped and they come in several varieties. They stay consistently green through out and are useful as a long term landscape plan.
Several evergreen bushes and shrubs grow in a dense fashion which adds to the beauty.
Holly :
Mountain Laurel
Nandina
Barberry
Aucuba
Juniper
Yew
Hemlock
False cypress
Boxwood
With evergreen shrubs you get to enjoy the lush foliage year long. Just make sure you work on trimming the shrubs to ensure they dont get cramped for space or infringe upon the space of other plants nearby.