Since you asked ... The hairline on his right temple seems just a bit sharp or maybe it's the sculpted hair shape where it meets the cap. The hairline over his left lip, and left eyebrow seem a bit sharp as well when magnified. There is a white speck on his right jaw near the headphone which really stands out ... probably just dust. Regardless, this is a beautifully painted piece.
Your talent is simply amazing. Thank you for sharing!
—mike