Hi James, not a bad SP. A few suggestions for next time though.
1. I know you want to achieve bright whites but they appear TOO bright in parts, particularly under the LEFT (your own left) side under the rim of the cap.
2. There's a few harsh-ish shadows near your left first, under your left eye, rim of the top of your t-shirt and generally the bottom right (as you look at it) the image. Care to share your lighting setup so we can see how u could improve for next time?
3. I think there's too much dead space in the top of the image, a tighter crop from above and right could help.
4. Glad you clarified you were after an 80's type look, I was just about call the fashion police