Keyhole low back strapless floral dress

Strapless (padded chest) dress that is white lacy patterned on the top with a bow knotted back above the keyhole opening at your low back. Skirt is sheer with a navy blue liner and the flowers are shades of pink, red, and green. Maxi length. The bodice is shedding a bit and I cut out the straps for a hanger but otherwise it’s in great shape and it perfect to wear as a wedding guest. Not sure of the brand but “iris” is on one of the tags