Usage patterns
〈数〉景から成るto consist of ~ scenes (of a play)
This play consists of three scenes.
〈場所〉から〈景〉を望むto command a view from 〈場所〉
You can command a beautiful view from the observation deck.
第〈数〉景Scene ~ (in a play)
The protagonist's older brother appears in Scene Two.
Expressions
景気よくwith gusto; enthusiastically; energetically 背景にあるbe a background factor; be an underlying reason