Me personally I'd wear a baby blue Cardigan to match the little blue flowers, along with bsby blue shoes, flats as. I can't wear heels, but heels are fine if you can, and a baby blue bag. You don't need any Jewellery, IMHO as the dress is dressy enough, maybe a little necklace, but obviously not a drop down one. If you want to paint your nails. I'd go for a French manicure or baby pink.