I feel like I know this aesthetic all too well. I dub it " Country fairy". It's similar to bohemian but doesn't exactly have that magical element.
Country fairy feels like a mixture of cottagecore, rusticcore, swampcore, and fairycore. Like a princess of the swamp.
The fashion is heavily geared towards women, but men can wear this style too it would just lean more into countrycore.
Fashion includes:
Flowy dresses (a base of white most often)
a cowboy hat
Fake or real fairy wings
flower crowns
Skinny jeans
The motifs are
butterflies
Flowers
sparkles
small woodland animals
farming
Vines
colors
Rustic browns and reds
Pastel colors
White and off -white
Values
Humility
Country roots
Faith
Hope
Media
Taylor Swift (2000s to early 2010) ; the Tinkerbell series, Cinderella (1950)