I think in combination with the song, the costume should have a simple, flowing? A white dress? Reflecting the musical mood, it's beautiful and not overpowering, complementing the song.
And how much is the budget per dress for your costumes.
Find something slightly less expensive!
The two pieces #1 and #2? Are of the get-the-job-done type? Priced in the early 100s?
The #3 one I really like? Slightly more expensive?300+
All three can be found on Taobao, if you can't find them, I have links. I'm afraid of advertising, so I won't disclose the links? ~(@^_^@)~? Hope it helps
Or maybe you can be more specific? I can help you find it again