A couple walks hand-in-hand in front of Victorian-style building and a wall with a large sleeping baby painted on it.
A couple walks in front of a building.
A couple walks in front of a building is less descriptive way of saying of saying couple walks hand-in-hand in from of Victorian-style building.
If the couple walks in front of a Victorian-style building, it follows that they walk in front of a building.
"A couple walks in front of a building" is a rephrasing of "A couple walks hand-in-hand in front of Victorian-style building".