>>47479078Nah they are great, just logical natural growth without any forced gimmicks.
Seel goes from cute fat derpy baby into a developed adept swimmer with a far more elegant form.
Its a shame how Sugimori's later revisions take away from how Poliwhirl and Poliwrath were actually poignantly different in Red and Green with Poliwrath looking properly toad-like with the eyes flaring out of the head.
And lets not forget both evos gain the Ice and Fighting type upon evolving which further sets the stages apart.