This game's lighting looks... Wrong. Like really, really sloppy wrong.

It's like they cranked up the ambient blue lighting to compensate for badly tuned directional sunlight and as a result there's bizarre blue color channel clipping on environment surfaces everywhere in the trailer. It's really obvious in the last scene and in the scene with the Blastoise. I sincerely hope it isn't going to be like this at release.

What the hell is going on with first party Switch games?

My second observation is that the terrain geometry is all surprisingly low poly, with ugly stretched texturemapping that, once again, just like SwSh, looks like it came out of the PS2 era and got some normal maps thrown on it. There's no vertex painting to even try to blend intersections between rocks and sand.

Everything looks better than SwSh but still does not look like a game that will invariably be a best seller should.