Color can reinforce the break without turning it into a hard costume effect. Try a light blouse with a darker waistband and bottom, or keep the outfit tonal and let a visible belt line provide separation. One readable boundary is enough.
Edit accessories around the sleeve detail
The crew neck leaves limited open space, so a necklace should earn its place. A short, simple chain can echo the compact scale. A large pendant, layered chains, and decorative sleeves may create three competing centers. If the neckline already feels complete, skip the necklace and use one small earring or a neat hair accessory instead.
Shoes can repeat the outfit's crispness through a defined toe, a small buckle, or a contrasting trim. They do not need to repeat the lace. Literal repetition can make a practical outfit feel themed, while one geometric or polished finish creates a cleaner relationship with the blouse's softness.
Before buying, confirm that the current page still shows the puff eyelet sleeves, crew neck, loose regular fit, and long length. Then compare the listed garment measurements with a blouse you own. The listing describes the blend as stretchable, but that fact does not replace a measurement check.