Parts bike or his bike?
While doing a compression check the sun just happened to shine in the spark plug hole and to my surprise I could see the open exhaust valve. Playing around I got to see the open intake valve too.
These pictures are of my parts bike 537 miles post new rings, gaskets, valve lapping and valve stem seals.. From what I can see which admittedly isn't much, it looks good to me.
Long live the internal combustion engine!
Looks good to me. The compression test will tell you if they're seating well, but they don't look blackened so I bet you're OK.