Awesome job! I just finished my first one, Trishula. Could you link the the brand or name of the double sided tape you use that goes between layers of cards. The one I used was very thin so I had to use lots of cards to fill out the depth.
So the specific one I use is from the brand Oramount, but I think it's only found in Europe. Most of the other artists I know use black double-sided adhesive tape for phone repairs, and you can find it in various thicknesses and dimensions on Aliexpress.