Right off the bat you have a young exotic woman travelling alone in a foreign land - I suppose I don't have to tell you what could go wrong in this scenario.
Laila learns to dance like a ballerina over the period of (what I can only assume are) several weeks, when it takes other people years.
Somehow the establishment she works at doesn't have bouncers, as evident by a customer being able to beat the girls working there. An establishment relying on the "beauty" of its workers to turn a profit will never allow this. Which implies this was just put in for artificial drama (that is not to say the same couldn't have been achieved, but in a more logical and consistent manner).
I don't know whether the part with Anastasia being called a princess was just a manner of speech, but if it wasn't, then it is even less plausible.
Finally this ends up with Laila getting what looks like a happy end, considering her environment she seems to have been quite lucky. Basically the author gives the reader what he wants rather than what he needs. I'd argue that this ending on an unrealistically happy note takes away from the theme - in a seinen manga I would expect a deeper characterisation and more realistic outcomes.