hmm, I would have given Quark a different outfit. He seems to be dressed the way Pel dressed when crossdressing -- I feel Quark should be dressed more the way he dressed in the episode he became a woman or the way Ishka dresses. They both wore a distinctive bit of jewelry that joins their ears but acts as a necklace (And probably is a display of weath), and colorful dresses.
Okay, so I actually spent way too much time looking up Ferengi outfits, so let me tell you why I think Quark is dressed that way.
Ishka and “Lumba” both dressed the way they did because they were trying to make a point: Look at me, I’m a female and I can earn profit and use it to buy these pretty lady clothes and wear them and display my wealth as much as I want, so suck it. Pel actively dressed like a male, to conceal the fact that she was female. Quark is neither one nor the other. Quark probably dressed the way Pel did for years, but now she doesn’t need to because the secret’s out. But she’s not trying to make a point, either. She’s still Quark, the same one all her customers knew; nothing’s changed. Sure, there’s a little bit of ‘suck it’ there because that gold thing and the cut of her jacket are pretty strategic, but like I said, she’s not trying to start a movement. So she’s not hiding it, but she’s not drawing attention to it, either. As far as Quark is concerned, it’s just business as usual.
Also, I was thinking of the outfit Janeway wore that time she was “Katrine” in the French Resistance, which, mm, yes. And Quark probably has a number of pretty lady clothes and jewelry when she’s on her own time, but that’s how she looks when she’s at the bar.
Not that I’m giving too much thought to Ferengi costume design or anything.