Awesome sketches! Very well done. 
As for a National Index collection, I did that a couple years ago: National Index including all Forms & Shiny Pokémon (W.I.P.). I’ve included all Pokémon forms and shiny Pokémon, and it’s complete up midway through about the end of the Sun & Moon era (so it’s missing the entire gen 8, and all the forms released during Sword & Shield). Not sure yet if I’ll continue it one day, but for now it’s a lower prio subcollection that’s put on-hold.
PS: Including shiny Pokémon is not recommended. They accounted for 2/3rd of the total cost with all the Gold Stars; Neo Destiny shinies; etc.
Greetz,
Quuador