Olocoons

The first two seasons had great animation for the time it was made and the main storyline of finding the Olorock along with the mysteries of the planet Olocoon was interesting through sadly some of the characters from O2 didn't come back for H2O. O3 through being centered now on different characters outside of Gruba and Rabak some of them were a great addition specially Dodi and Azalea. Misión Tierra 07 is probably the best in terms of writing with Azalea's father forbidding her for hanging out with Dodi along with a new villain who's don't redeem at the end of the series like the previous along with his sidekick Elektron and the plot twist of Supremo being Dodi's father along with the ending of Dodi and Azalea's wedding it feel like a great and true conclusion to the Olocoons franchise with the only mistake being the bad way they introduced human characters as knowing of the Olocoons due to them being a fictional franchise in universe through the next season would be worse. Secretos Del Bosque focused on the human characters which have been aged up and the storyline has became unnecessarily more serious and mature such as showing Dodi's death and being revived by some magic tree. Some of the character development from previous season was taken away such as Azalea who in previous seasons got to defeat villains and create ecological gasoline now wanted to let the three human be in danger just because her robot husband who stupidly sacrificed a moment before instead of escaping the spaceship with her just died and new characters are just forgettable cartoon villains like a woman who shapeshift into a girl and two comic relief and a new human villain who in the weird cliffanger of this season ending ends up betraying Supremo for some reason.