Luke has scars on his face on the NJO covers.

Tru-dat.

I think the scars from Luke's face are from more recent encounters.

.....

I expected this much from Max but from you? That's it Kraker, take your necromancing self to your room and think about what you've done!

I'm just reading the threads that the Google spiders are viewing.

Park Kraken

I think the scars from Luke's face are from more recent encounters.

Luke's scars are from the Wampa attack in ESB. Also, Luke didn't get hit with his own force lightning. That might have something to do with it...