I know you love this :) Beautiful creation by Vera Serdyuchenko aka Alisa777 published in Duplet 161 of course, this is designer's model but you can try and as a bonus:
T The dress is published in Duplet 148 Don't try to find full pattern there (as always for designer's dresses) but the elements are easy to crochet, you can find them in any Duplet magazine Beautiful and clever combination of chiffon and crochet Designer: Svetlana Bekreneva
by Svetlana Bekreneva Dress like this, made in complicated mixed crochet techniques, can not have common patterns. This is a product of designer's experience, fantasy and skills. But you can always find schematic patterns of motives used for dresses like this in Duplet magazine. Duplet 147 crochet patterns magazine