It would be pointless picking out my favourite bits because they're all done beautifully and you've made him look even more gorgeous. <3
... Okay I'll list them.
Skin tone is perfect. Lips are perfect. Chin is perfect. NOSE is perfect. That's difficult. His bottom jaw is perfect. The shading along his cheekbones is perfect. His EYES, oh my god, his EYES are PERFECT. As are his eyebrows and especially his hair. His neck is nice, too.
Holy mother of God. -melts into puddle of admiration at your feet-