LogFAQs > #979786236

Seasons 1 through 3 use the same Poser engine, but the amount of work they put it though continues to improve and they do some amazing stuff in Season 3. They fully switch to Maya after season 3, and the models vastly improve but the choreography takes a sharp hit, especially in season 5 which is rough in terms of action quality. It's all comes together from season 6 onwards, though.

Season 1 of RWBY is rough. I even skip some chunks of it when I rewatch (Jaune I love you but you sure started out....not good). Season 2 I like quite a bit though, despite some oddities, and season 3 is just straight up very good (not the best one, as much as a lot of stubborn ex-fans would try and tell you to believe)

And yes, the soundtrack is incredible and only gets better and better as Casey Lee Williams improves her vocals.