Oh, I see some fibres on the keris. Remnants of the cleaning rag?
Better pick those off with a pair of tweezers, or you will soon see real rust forming on the keris!
I would suggest you use a dabbing motion to clean the oil off the keris, rather than a rubbing motion, which will lodge a lot of loose fibre on the keris. While we like our kerises to smell nice, it is better to clean off the oil until it looks dry. Shiny wet oil on the keris dries up and leaves residues which causes more rust, and the worst part is that they stain the wrongko. Once the wrongko is stained by oil, you can never get the stained patch to go away. Better to note for your kerises in expensive wrongko.
Singer oil would be a good cleaning oil, after which you can apply a eeny teeny bit of scented oil.
Happy keris collecting!