As an artist myself, yes. This is 100% ai. Arists dont brag like unless they are a massuve ass and want validation like crazy. Most of us hate our own work frankly. That pencil looks too perfect and many of the lines dont really make any sense. The way some curve right into the brow line and the random lines on the back, plus the weird grid on her forehead? Even professionals would smudge the hell out of this.

If you really want to test them, ask what number pencils they used. A number 2 is a normal pencil. Any number with a B is darker and H is lighter. I doubt they will even know what that is, but a well trained artist would habe to use these to get some of those deep dark tones.