>>32238950Gen 3's all drew inspiration from animals. Blaziken is based on an upright-walking breed of cockfighting chicken. Sceptile is based on leaf-tailed geckos and certain dinosaurs, the latter of which walked on their hind legs. Swampert is based on axotols and mudskippers, and is mainly quadrupedal but sometimes stands on its hind legs, like Ivysaur. No more humanoid than gen 1 or 2, both of which feature two bipedal and one quadrupedal starter.
Compare to gen 4 which is Monkey + Fire + Wukong, Turtle + Tree + World Turtle, and Penguin + Water + Emperor, and you can see how things were beginning to move away from purely animal inspired design. By gen 5 we had Pig + Fire + Wrestler, Banana + Leaf + Nobleman, and Sea Lion + Otter + Narwhal + Swords + Water + Samurai.