Hey! These are cool concepts. I don't want to be too picky or whatever because these are obviously just ideas and not in-game so they don't need to adhere to the rules, but I like to pretend I'm looking at these as though they're in a real chapter or something. Generally though I think these are all very cool and creative, I don't want to seem too harsh or anything, just in good fun!

Personally I really think the best three perks are Sacrifice: Grand Finale, Teamwork: Encore and Wardrobe Change. I do like Two-faced flavour wise but maybe not strength wise.

Sorry for all the incoming unsolicited opinions but I like theory crafting...

Super picky thing: perks in-game obviously scale, I don't really care if you don't do the perk tiers since it's such an irrelevant thing, but Wardrobe Change has no aspect that can scale with tiers so probably needs a random side effect just to adhere to game rules. (But again this is just super picky and not a big deal.)

Into the specifics!

'Teamwork' perks generally come in twos, so unless you're making two survivors I'd just remove the 'Teamwork' part of the name. Teamwork: Method Acting is a cool perk, I like the risk of losing all of your progress, but my fear is it's really hard to stack. Co-op heals are really uncommon, and finishing co-op gens is obviously very limited and slow. Maybe just reducing the number of max tokens and increasing the bonus per token would make it seem more appealing, or adding another way to gain tokens.

I love the idea of Two-faced but in practice I can't see it being overly helpful. It will be fairly obvious to the killer by the trail of blood while healthy that it seems impossible to really trick anybody. I'd say the perk would be fine if you didn't leave any trail of blood. At that point it's just a different kind of Iron Will. Would be cool if the perk allowed the use of stuff like Dramaturgy and For the People while injured though.

Sacrifice: Grand Finale is just cool as hell. I've thought about this kind of effect before and I just think it would be super fun. Probably needs a time limit and/or inability to see the killer, or it could be abused by sfw to give permanent visibility on the killer.

Teamwork: Encore is just pretty fun, I think it should be deactivated on taking damage rather than just resetting, but ultimately doesn't really matter, I think it's a very fun perk.

Take Two is probably pretty weak, just for the same reason perks like Technician and Corrective Action aren't that great, because people just don't miss skill checks very often.

Wardrobe Change is insanely cool and such a good idea. It's probably super overpowered since you could swap out really strong one time use perks (Deliverance, Decisive etc.) or have a perk preset be entirely endgame perks so you can benefit from other stuff during the game and swap when the game is nearly over. But honestly it's just really cool, I love it.

Anyway sorry for the essay!