So this is Jake Sully doing grown-up Anakin as a slave?
And I do like Watto better than that fat dude...
A fair observation about it feeling derivative...
For echoes onto other films, I would add also that the scene has the feeling of elven speech in Peter Jackson's Tolkien films, of the language itself having a kind of magic to it.
As we know Snyder originally conceived of the film as a standalone in the Star Wars franchise, but insisted that it be R rated and independent of other characters and ongoing plotlines in the universe. Disney didn't want that. Which as all for the better. Thankfully Zack was free to do his own thing. But Star Wars as an inspiration is obvious.
"Star Wars," released in 1977 and since renamed as "A New Hope," is itself hugely derivative and was intentionally so from the start (seriously, this is worth at least a skim):
Star Wars sources and analogues - Wikipedia
But that being said, I one hundred percent agree with Wor-gar that George Lucas did it in a way that at the time was totally fresh and innovative. (It didn't/hasn't stayed fresh even starting from ESB imo, but that's another discussion.) He melded sci-fi and fantasy in a way that hadn't been done before.
With Rebel Moon Snyder is more self-consciously doing what Lucas did in that regard. And it will be interesting to see how that shakes out in the present day, for where our culture is currently at, and what sort of commentary Snyder is making about the space opera genre, etc. Because that will be there for those willing to look for it.