They may have a “U.S. addresses” but Facebook suggests they’re in Pakistan. They have got awards logos on their Web-site from 2020 (the website didn’t exist until 2024). You can find inadequate reviews on copyright regarding their editing services. We couldn’t locate the showcased book on their homepage on Amazon. https://maplepublishers.com/blog/5-considerations-when-hiring-a-book-illustration-agency-or-a-professional/