Whispering Gallery is a Doom Metal band from Netherlands that formed 1995 in the city Amersfoort. They use clean vocals and growl (grunt actually), they are 6 members in the band, and the instrument they use are, guitar, drums, bass, piano, synthetizer. So they have a special sound.
They're singing about life issues that's pretty heavy, like solitude and mental pain in other ways.
In their pictures they take use of religious icons, no information if they're religious.