Thinking about it, the Barraki were probably among the best waves in G1 BIONICLE. They weren't clones of each other, unlike the Bohrok, Rahkshi, Vahki. Hordika, Piraka, or Inika. They were quite distinct from each other, and yet they belonged together, and you could definitely see how they resembled creatures of the sea, well, most of them. Kalmah is probably the one with the weakest design, seeing as he looks nothing like a squid. Ehlek and Takadox have the strongest designs, and Mantax, Carapar, and Pridak are somewhere in the middle.
These sets, I believe, are probably the best example of what made G1 good
. Not terrible, not bad, but good. They're distinct, similar, eschewed the clone-sets of previous waves and did something new, and I also believe they are the G1 sets most similar to G2's villain sets: they follow the same theme, yet they are all distinct.