Thank you! Sorry I don't remember specifically and looking back at my copic collection I had a hard time trying to figure out which ones I did use because none of them really match the colours... but I know I used Cobalt Blue (B26) and Lapis Blue (B18) and Prussian Blue (B29) for darker shading. For the purplish tinges I might have used Viole (V09) or Iris (B79), but I know I also used colour pencils to mix the colours a bit.