Villain4ever
that was great although maybe it would have been interesting to bring Vault's mage guy if only for the reactions to magecraft etc.and this is just a suggestion but can you change Zero Artoria to be closer to the one from Fate, as you probably know Urobuchi Zero's author deliberately changed her because he hated her and made her a naive little girl obssessed with honor who folds when someone questions her ideals while it s shown several times in Fate that she is ruthless and has a very similar philosophy as Kiritsugu and the only time her wish is questioned she just tells Shirou to shut up and think before opening his mouth
Hope you make them watch the 3 routes after fate zero, Fate route, Unlimited Blade Works route and Heaven's Feel route but hope you make most of them see the true ending last episode since the Fate route (for me) it's canon timeline (for me again Shirou x Artoria ship for life). So that the heroines of Kuroinu world see to each of them which one is their favorite ship romance with Shirou. Hope you make Also the others Kuroinu gaiden heroines characters appear since they have expanded the cast.