Well, for these I'll really just be focusing on archetypes I've worked on and real life archetypes tjat I'm familiar with. A few now, so maybe I'll look at the others on a later date.
Cafe Girl: Well, it was supposed to be based on only one Normal monster, so that was a given. That aside, the monsters are nice. First one serves as searching; but I feel her primary effect is lackluster. At least her second effect doesn't have the restriction.
The second one however, has a nice Special Summoning effect. ATK is a tad high for a Level 1 monster though.
Shivergami: Cyst has a great Special Summoning effect. I guess you could Summon Trans for its additional Normal Summon effect. Or Amputation to draw 3 cards. Vivisection is reminiscent of Fabled Soulkus, as they both require you to send from your hand two of the archetype. Except Vivisection is more worth the investment, since it's got an ATK increase, triggers the discard effects, and doesn't take up Main Deck space. Reconstruction is AMAZING. Well worth the effort of investing your monsters. A banish effect, a Beckoning Light-like effect, AND a draw effect? I think the first two are good enough. It doesn't need the draw effect. It's just overkill. Chemotherapy is scary. Sure, it's more specific matetials than Reconstruction, but it can't be destroyed and it's last effect is very potent. If your opponent Summons Utopia the Lightning, Utopia's as good as gone. Spite is alright. You could probably remove the ATK increase effect and it'd still be a good card.
Overall, Cafe Girl felt a little lackluster while Shivergami looks bigger and stronger with its new toys.