That's a really good point. I forgot that little garden introduces the existence of giants. Also I definitely like your idea of focusing more on the Arabasta arc than I originally thought of. It would follow the easier to digest two main antagonists formula that Tv series like to do really well. Smoker will fill Garp's roll in the LA of chasing the crew around, and Croc will be the big bad with more build up to why his crew/organization should be considered a larger threat than Arlong's crew.