Cottagecore I think.

Fairycore

Fairycore

On top of what people have already suggested, I'd take a look at Naturecore and Butterfly. There are also some similarities to Adventurecore and Bloomcore.

Bloomcore, also with the image of the thing river and mountains is giving me adventurecore vibes

I see Caninecore, Ethereal, Bloomcore, Fawncore, Comfort/Cozy and Adventurecore.