Artist: Leonardo da Vinci
Title: The Last Supper
Dimension: 15 x 29 feet
Media of each work: Mural Painting
Why you chose it: This painting is basically history itself. I am also Catholic and I can refer to the story behind this painting which is why I like it.
What about the reference image you can integrate: Leonardo uses one-point perspective by facing the whole scene towards us, the audience.
Some interesting factoid about the artist(s). Leonardo da Vinci is a notorious procrastinator and tended to not finish many of his projects.