From Ghost Trappers Wiki
The painting collection is a set of souvenirs that can only be received as loot from certain Secret ghosts.
The souvenirs that are part of the painting collection are:
The Painting of Loch Muir is also dropped in Loch Muir nightmare mode by the Templar ghost (nightmare).
Collect all of the items in the painting collection and you will receive:
Painting of Castle McCloud
Painting of Count Church
Painting of Kirkyard Cemetery
Painting of Loch Muir
Painting of Sternham Castle
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