Zander Cannon is on BlueSky, not hereさんのイラストまとめ

Geo-Knight Taekwon, the designated protector of Seoul, is a lava-based anti-hero in the vein of creatures such as Toho's Kumasogami and the version of Goldar redesigned for Power Rangers (2017).

The monsters that flank him, left to right, are based on Showa era enemies/allies of Godzilla: King Ghidorah, Baragon/Anguirus, and Ebirah.

...he transformed into a more destructive form, reminiscent of 4th form of the creature from Shin Gojira (2016).

The aforementioned Whoofy was, until Kaijumax Season 3, an homage to Minilla, Godzilla's son in the Showa era. But after a moment in which he realized his complicity in the destruction of Chiba...

The prison-physician-turned-prison-inmate Dr. Zhang is visually based on Mother of Ultra, aka Ultrawoman Marie, the head of the Silver Cross Aid, a medical unit in the Ultraman franchise. Weird helmet constructs that look like hair are a must.

The always-hustling inmate Ding Wing (more properly known as Giant Monster Terongo, Terror of Pago Pago) is in essence a Pteranodon drawn without reference, thus making him a worthy successor to Toho's Rodan.

The not-very-sympathetic prison guard K.E.I.K.O. is an homage to the much more helpful (though still in essence a prison guard) L.U.C.A.S. from Godzilla Island (1997).

The sinister Li'l Boy, who haunts Whoofy, son of the legendary Ape-Whale, is based mostly on Ichiro, the protagonist of All Monsters Attack (1969), who dreams his way to Monster Island and befriends Godzilla's son Minilla.

Holy cow, Furie is on Netflix. If you liked Taken, but wished Liam Neeson was a hundred pound Vietnamese woman who could break Liam Neeson in half, this is the movie for you.

And finally, the iconic clock tower from RE2, the broken T-virus flask from half the games, and the save point typewriter.