I got three multicoloured pens last month and totally forgot about them, they've been sitting on my desk with my other coloured pencils and I really can't explain why I've never tried to use them. I saw lots of videos about them so I decided to buy them since they're quite cheap, each of these pens have 10 colours, some colours look good on paper, some are not very pigmented while others look different from what I expected which is why I paired them with my coloured pencils to get this result. I'll definitely give it another try.....
Have a beautiful week...