Hi, looking for advice on decorating this long sectional wall that is shared by my dining and living room.

I have a gallery-wall-esque collection of vintage textbook illustrations and a mirror centered along the dining table, so I feel like another gallery wall above the sectional would be too repetitive/busy.

I’d love to do 1-2 big pieces of art, but a lot of large-scale art feels too contemporary to complement the more formal/vintage vibe of the dining room.

Any large-scale art recommendations that skew slightly less modern?

Bonus Q - Is an art ledge above a couch a no-go?

Thank you!!