Item description:

You will have to interact with the paintings/exhibitions

From starting point, Joan of Arc (facing the 3 women)

So, best to do in order...
(Mash X to skip the dialogues)
(Use L1/R1 to change camera angle)

Joan of Arc
Narcissus
The Good Samaritan
The Worker Bee
The Mechanical Orrery (Planetry)

!! Now, Poirot will mention that he can now access
more paintings in the corner where Zakariya stood !!

Judgement Day
The Wild Horse

Automatically talking to the guests
(Mash X to skip the dialogues)

Match...
Monsieur Kristiansen = Narcissus + Vain
Mademoiselle Warbeck = Joan of Arc + Underdog
Madame Betty Allen = The Wild Horse + Plays down her personality for British society
Mademoiselle Farquhar = The Worker Bee + Hard Worker
Monsieur Ailsworth = The Good Samaritan + Passionate about charity work
Bishop Mountjoy = Judgement Day + Judges people harshly
Mademoiselle Court-Smyth = The mechanical orrery + Centre of attention

After the above, just mash X to skip the dialogues

!! Cutscene !! (let it play out until trophy The Gala unlocks)