Hi. I think your designs are great, fashionable and appealing. Regarding the one piece, i just thought the halter straps were a bit short, as a result it kind on pulled on my neck, in addition the swimsuit gets heavier after being in the water. Better if it longer for those heavy top and still sufficient to double knot it. The metal hook at the back kind of rust a little even before touching the water. Could be harmless but thought you might want to change the type of metal hook so that its more presentable.
Overall, still great buy. The shorts in the same purchase was lovely, good material.