I didn’t mind Lion-O and Tygra being brothers, and I didn’t mind them having a rivalry. The problem was how antagonistic the rivalry was. It should’ve been more like Leonardo and Raphael on TMNT. They fight, they disagree, and everything, but it’s balanced with moments of them being brotherly and coming to understand one another.
What I would’ve done differently:
I would NOT have had the Ramlak episode right after the premiere. I probably would’ve skipped the fish people altogether to be honest. The premiere was such a great start, and then that episode was so completely different in tone (aside from the funeral and Mumm-ra’s pyramid at the end) that it put a lot of people off from the show.
The whole love triangle thing wasn’t needed and just made people angry. I would’ve just had a slow and steady progression of Cheetara and Tygra getting to know each other and flirting until they were finally a couple. And yeah maybe Lion-O could’ve had a crush on her too, but I would’ve handled it in a way where he knew she didn’t like him back.
I would’ve made it so once lesson learned, they didn’t revert back to old behavior so easily.
More OS characters. Especially villains (though I know they were building up and had more planned for the next season).
Them finding the Book of Omens should’ve been the mid-season finale. They found it too quickly.
And yes I would’ve liked revamped versions of more of the old music. I read somewhere that Kevin Kliesch had more songs from the OS available than he actually used. He just chose not to use them. The music was pretty, but entirely forgettable.
And Lastly I would’ve introduced the Bird City sooner. Into the Astral Plane and Between Brothers was a much more satisfying finale than What Lies Above, in part, because we were introduced to the Elephants earlier.
Loved the art direction. Everything was beautiful. Great voice cast. Some really great ideas. The overall plot was very well thought out IMO. It’s just that the writing for each episode didn’t flow as well together as it could have. And sometimes I think they tried to be more kid friendly than they should have. Young Justice and Avatar TLA are good examples of great action shows that didn’t dumb things down for kids.