These are edited versions of a photo I took of Pero's Bridge in Bristol.
I first, changed its mode to Greyscale and then adjusted the Duotone.
Duotone - Cyanotype.
Duotone - Black and Purple.
Duotone - Black and Green.
Photomontage on A3 white.
Before placing them on the A3 white, I gave each photo a border by firstly adding a white canvas size of 1mm and then adding a black canvas size of 1 cm.