You have gotten some very good advice in this thread. Tamashi has given you good things to think about.
A note on webcam work, they have to deal with lots of people who are losers just saying stand up turn around take off your clothes etc for free. If they get upset and ignore people they won't get money from the few paying customers who are also on the site.
Of the few dozen asian girls I've worked with the earnings were low. Livejasmin is reputed to be one of the highest earnings sites. The girls I work with are on other competing sites. They can be decent looking and earn as little as a dollar an hour. There are thousands of girls working webcams. How hot their shows are is a big factor in their earnings, more so even than their looks. Some "7" girls earn 10x what many "9" looking girls earn.
If you do your own solo site, I can guarantee you can lose as much as $10,000 a month with payouts if you choose. Possible earnings, well a few people are rich I'm sure, not me.
I've paid the girls all the money I received from the webcam sites, (like only a few $hundred a month typically), because it isn't enough for me to take profits and them to pay the bills. They gave you examples of top earnings possibilities, commonly it is not as lucrative for the average girl as you seem to expect.
Think about it, how many hot girls worldwide do you think are out there that would do sex shows for $5,000 a month? Answer: millions.
Like so many guys tried to tell you above, many things have to come together to make it into a decent salary. And so far you haven't even provided any quality samples of her ability to work, or ability to shoot quality video, so I'd say from what we have seen we can estimate she'll earn nearly nothin' to write home about.
Come to think of it, it's not too different than girls who want to go do Hollywood and be famous actresses. Sure can happen. But don't quit your day job
BTW: Breast augmentation and tatoos can have a negative impact on their marketability.