Diamine Autumn Oak is an orange ink with an average flow. Due to shading, this ink can look light to dark with a bit of brown. I can see why so many people love this ink.
On Leuchtturm1917 paper, there is shading, no sheen, no feathering and a little bleedthrough.
This is written with a TWSBI ECO-T medium nib.
Below are a couple of photos of how it looks when it is written on both sides of the paper.
Disclaimer: This ink was purchased by me and all opinions/photos are my own. This post was not sponsored.