The funny thing is that this scene is kind of a direct comparison to the Mustafar duel in RotS. The main difference is that, while the hellish landscape of Mustafar represents Anakin's fall to the Dark Side, the presence of water, a symbol for life or renewal, on Kef Bir is the perfect backdrop for Ben Solo's redemption. In other words, Battle of the Heroes is just perfect for this!
i didn´t seet the original.... maybe it looks better than original for those who seet, but the dialogues, sync, and models details still looking CGI from PS2/begin of PS3