You can't deduct educational expenses as "higher education" unless the school is accredited by the US Dept of Education to participate in federal student aid programs.
You can't deduct the expenses as work-related job training unless she is already earning money as a model. You can deduct expenses to improve or maintain your qualifications for your present job or career, but you can't deduct expenses for training needed to qualify for a new job or career.
Your child will need to file a separate tax return under their own name for their own income. Income earned from working is never reported on the parents return. As noted, each separate return in turbotax online requires a separate account and separate filing fees. It may be cheaper to buy Turbotax as a CD or download to install on your own computer, to use to prepare both your own (parents') and the child's returns.
Finally, if the child provides more than half their own living expenses, you can't claim them as a dependent for that year. The key is how the earnings are spent. If the child's earnings are saved or invested, and the parent's income is used for support (food, clothing, rent or mortgage, medical, travel, etc.) then the child can still be a dependent. But if the child's income is used for the child's support and makes up more than half the total amount spent on the child, then the child is not your tax dependent for any year where they actually provide more than half their own support.
