A grey-blue dress with shoulder panels offers a coloured contrast to the pale references. The bodice has visible pattern, a long skirt opens over one leg and extended panels fall from the upper area. The wearer stands on stairs, but the pose does not show how those longer pieces are handled while moving. The colour and pattern cannot establish silk content or tell you whether a similar actual product is offered as bridalwear.
If colour and additional falling panels interest you for your own celebration, try them as separate choices. Walk in the real garment and see where the extra lengths sit when you turn or take a seat. Ask how they are attached rather than assuming they can be removed. Check the skirt opening independently with your shoes. Then compare a quieter outer layer that does not unintentionally trap the panels. A staircase setting is a reason to ask a movement question, not proof that every stair will be easy. Choose the visible idea you enjoy while obtaining the missing product details separately.