Comparing the two fragrances…

Britney Spears

Tocca
Curious
Florence
Only in Curious
Shared character
Both Curious and Florence belong to the floral fragrance family and share a composition of jasmine, tuberose, musk, pear, and various woody notes, including white woods and blond woods. They both feature fruity, aquatic, fresh, and white floral accords.
How they differ
Curious includes notes of magnolia, sandalwood, vanilla, lotus, cyclamen, and pink cyclamen, resulting in sweet, powdery, and synthetic musky accords. Florence features gardenia, bergamot, iris/orris, apple, violet, violet leaf, white musk, Italian bergamot, green pear, grapefruit leaf, and blue iris, which contribute green, animalic, and lactonic accords.
Who each suits
Curious suits those who prefer sweet, powdery, and floral scents with sandalwood and vanilla. Florence suits those who prefer green, lactonic, and animalic floral scents with notes of iris, violet, and bergamot.
More Curious comparisons
Only in Florence