[A note to the reader: those averse to seven hundred word tags, fashion, or combinations of the two may feel free to skip this.]
If she looks at her general ensemble, as compared to these people and just in general...
... her dress is sort of unremarkably shaped and it needs to be made of a prettier material, her hair is mediocre, her shoes need to go, her gloves are bleh and that area needs more elaboration, her back is pretty under-decorated aside from the curlicues, and she needs more rose gold?
Sketch, sketch, sketch, almost an hour total of sketching and thinking and biting her lip -
She layers her dress, and fiddles with the fabric. The first layer resembles her current ensemble, but with the hemline higher up, and with a more dramatic flare and more dramatic feathering, and without the slit up the side. She divides it into two fabrics - fabric A is a mix of black threads - vantablack, even, as dark as she can get without compromising on flexibility - and a low density assortment of shimmery rose gold, gold, and silver threads, while fabric B is an impossibly well woven net of silver, gold, and rose gold threads, thin enough to be almost transparent.
A solid line of fabric A stretches across the top edge of the dress, and everything below her waist; the section between has fabric A layered on top of fabric B in approximately this pattern, with a great deal more feathering (and, in particular, enough feathering to obscure her areolas, in that region). She keeps her existing diamond curlicues and diamond flower-dots - and her brooch - on this dress layer, and adds on a great number of much tinier little diamond flower dots all over fabric A, glinting and sparkling.
On the second layer of the dress, she adds something almost like a short train, or a cape - no fabric in the front, enough fabric in the back to flow a foot behind her, with a heavily feathered hemline and the fabric itself being similar in character to fabric A, with a higher density of gold and rose gold and silver threads. It has curlicues identical in form, essential character, and meaning to the ones on the first layer, arranged differently - they stop just where the feathering on the hemline begins, and begin just where the second layer joins up - in an impossibly seamless sort of way - with the underside of the first layer. They also curl around another diamond brooch, smaller still than either of its cousins, in the middle of the fabric.
She keeps the third layer simple - several dozen heavily feather-like strips of fabric B, overlapping with each other, dangling down from her waistline and whirling about whenever she moves.
That done, she switches up her updo so that it looks approximately like so, rearranging her flowers appropriately and trying several small variations on the general theme, and gets rid of her current boots. In their place, she tries boots in a base color of silver, without laces of any kind, made with the same vantablack-rose gold-gold-silver mix as her dress. It acquires delicate diamond curlicues of its own, in the same gradient as all of her other curlicues, joining together at the toe and curling around everywhere else, and - in lieu of a more conventional edge - she adds feathering; tall, dark feathers make it about halfway up her knee, and a slope of progressively shorter feathers do a moderate amount of poofing out.
She does something similar with her gloves - she switches their fabric over to fabric A, draws them back from her hands so they only reach her wrist (at which point they cease to be reasonably called ‘gloves’), and turns most of their mass seamlessly feathery, with the tallest feathers reaching her elbow. Those feathers, in their own turn, acquire diamond curlicues with pretty gradients.
And with that done, she scoots her cleavage down a touch, and scoots the feathers splaying down from her choker a little up, and adds a delicate, crystalline flower, poking its way up from between her breasts; it’s of about the same style as all three of her brooches, but it has a touch more elaboration; each diamond petal has intricate internal swirls of gold and pink, and the silver edging is instead strikingly black. The ‘stem’ of it, dark, loops its way around her torso, once, holding it contentedly in place.