I want to believe it is her cheongsam and not body painting, but it looks so impossibly sticking to the skin for me to ignore. That's just not how tight clothes work.
The art style seems strongly resemble Takahashi Rumiko's works (1/2 Ranma, Inu Yasha,...) to me. (Damn, it's already been more than 20 years since I first read those series. I feel old)