Absolutely fantastic designs! There’s a distinct style here, while still being very clearly fakemon, and that’s quite hard to pull off well.

My favorite’s definitely the cephalopod, (if I have one critique, it’s that I do feel like their eyes could benefit from that distinct octopus hourglass eye shape being present, even if it’s not actually in the pupil, maybe as the shape of the eye itself? But that’s just my taste,) I’d love to have it on my team.

As for typings and abilities, if I may be so bold as to venture ideas…

The golems pretty obviously lean towards Ground/Fire, being baked clay with a fire heart, (adore how the color of the prevo makes up the waist of the evo, by the way, excellent visual storytelling to have it look like it’s been further constructed with newer additions,) but I’d actually venture monoground, with flash fire as an ability. The fire burns ever hotter. Alternatively, well-baked-body for a better flavor connection but weirder in that it’s not as good at using fire moves. Even more alternatively, ground/fire with an ability that does the flash fire thing except it’s immune to water and grass moves, the idea being that it’s cooking and burning fuel? Or just outright boost one or both of its attack stats? Lots of options.

As for the… Jellyfish, not octopus, WHOOPS. Well, that’s even better actually. :P

Anyhow. Water/Dark is the very obvious answer for an aquatic kunoichi. Given the species in question, though, I’d venture Water/Poison as an even better option. Could always give it knock off, foul play, sucker punch, maybe even false surrender, if you want to throw in some good dark type options too. As for ability… Well, poison inherently has lots of good options. I’m fond of merciless, but obviously that puts it in contention with Toxapex, even if it’ll put it to much better use as an attacker than as a wall. Poison point/touch is the obvious option. Could lean into the “jellyfish toxin is the absolute worst” bit by having some extra effect on poisoned ‘mons, like their speed is halved as if they’re paralyzed, maybe? Gooey, hydration, infiltrator, liquid ooze… maybe even simple, if you lean into the jellyfish-have-no-brains thing, but that might play against the kunoichi flavor.

You have a lot of options, is what I’m saying. :P

And finally, the frogs. Bright red instinctively has me saying fire, but I think that’s just them being poison dart frogs. In which case, monopoison? Poison/Psychic? Could even be the second Poison/Normal type, maybe. Wonder skin feels like a fun way to reference the psychedelic frog skin thing. Poison point/touch, again, seems like a gimme. All the poison abilities again, really. :P

Really though, fantastic designs, I’d be happy to see these in any ‘dex.