Krishna seems to be trying a variety of things and looking to set itself apart from its contemporaries and this is no exception.
When I first wrote this review (in a Life notebook), I wrote the following:
The base colour can be generally assumed to be green, however it actually has a strong red component while wet. As the liquid evaporates, the red acquiesces and darkens, usually giving it a shaded appearance in volume. I Say 'usually' because in extreme cases, the ink concentrates in to an earthy, opaque yellow-orange, which is actually what most people would classify as ochre.
 So - the titular ochre appears to refer not to the base colour, but the unique concentrated residue. What's more odd to me is the residue is matte, not metallic, so I don’t know whether it would be accurate to describe this as sheen.
 Looks greener on Tomoe River, trends more toward yellow on wheat sheet copy bond. This yellow tone becomes even more obvious over time (like over a few hours).
 Relatively quick drying, not waterproof when droplets reapplied, red tones begin to re-emerge. Ink also lifts easily.
The reason why I call this out is this:
I woke the next morning to find my (seemingly) dry writing sample had completely turned a deep yellow, except for the spots where I'd added some water droplets to test for water-fastness. At this point, I am left wondering whether these areas will turn yellow eventually as well? Of note, there doesn't appear to be any major shift for my samples on Tomoe River paper, while the colour change and lightening varied on Muji notebook and Profolio Oasis notebook paper as well.
Roughly 12 hours after first use, I would say this ink does actually resemble a raw ochre on most papers. If you enjoy the novelty of colour shifts in ink as well as yellow as an ink colour, this one may be for you.
As for me, I like finding things like this that might be considered imperfections... but i can't help feeling the unpredictability might put some people off. This will be a novel addition to my ink collection - There are aspects of this ink on particular paper which I love, but I am still warming up to the full-blown yellow this turns out to be on most papers. The naming is accurate, but it takes time for this to become apparent. It might be a good match for some of the brighter yellow pens I've seen recently (the Kaweco sunrise/sunset pens come to mind, as well as the Ferris Wheel Pen Co. Brush pen in yellow)
Ink: Krishna Kot-Massi Ink 'Ochre' via PenChalet
Writing sample paper: Life Tsubame (unlined) via Wonder Pens
Also tested on:
  The Japanese Paper Place (Tomoe River 58gsm) via Lunenberg Bound
  Social Print Wheat Sheet 20lb, unlined copy bond via Grand & Toy
  Profolio Oasis Notebook via Midoco
  Muji - >55% recycled paper Notebook
Feathering: none
Bleed: Noticable with ink blots and high volume swabs/swipes.
Shading: slight
Sheen: None, but the ink does concentrate in to an opaque yellow/orange residue