Dress - Mikunch spring onepiece with puff sleeves (lace version) (Seasons Story April)
Boots - *COCO*_CowboyBoots(withSocks)_FloralBrown - Old Chapter four gacha (I think a similar/same version is now available to buy at the Japan Fair)
Flower garland in hand - ANE Spring Crown Rose (Collabor88 April)
Bunny - HPMD* Sitting Rabbit M
Flowers - Modded Bouquets from the Secret Store (The Arcade March), Crocus from Organica, and the daisy was plucked from the What Next Bramley bicycle.