Not all requests for art commissions are scams, and many artists do get paid through PayPal. However, it's important to be cautious. Scammers may send a fake payment confirmation email or overpay and ask for a refund of the difference. To protect yourself, never ship artwork or refund an overpayment until the money is cleared in your PayPal account. Also, consider using PayPal's Goods and Services option, which offers some protection for sellers.