Hard to say. I have nothing expensive, and a vast range of styles. However all the pictures on my wall are individually loved. I have a few favourites, including
The Love Letter by Millet (print) My copy was my Grandparents and is in a lovely wood frame, and is sepia.
btw, the artist went down on the Titanic.
I have 4 prints of Italy that a friend gave me.
However the true specials are the paintings that Mum did. She sometimes copied pictures, but in one she painted the 5 houses that they lived in during their marriage. I often asked her where the next house would go ... but as it turned out she never needed it! It made it that much harder when she lost her sight to realise what she had lost. These aren't great photos as they were taken on my phone, so the angle means they are slightly blurred in places, and the colour isn't great, but you will see what I mean -
The list of 365 questions can be found here