Real human vs A I Voice

I produced this promo for a long-time client. During production, I sent them two samples to choose from, and after sending the samples, I didn’t receive any comments about the voice

Above audio is the dry versions of ai vs human vo
sounding like AI or robotic. However, after sending them the final work, they are now complaining that I used an AI voice instead of a human voice. I need your opinion on this. Does if its really sound like an AI voice?
below is the final work with real human