1.   The room was tiny, its walls cluttered with paintings and old photographs.

2.   The walls were cluttered with paintings and prints.

3.   His walls are cluttered with an assortment of arcane tools and patched with posters of Stradivarii and Guarneris.

4.   State radio plays patriotic songs urging vigilance against an attack, and banners and slogans clutter walls on street corners.