If I saw
Jack and
Landon next to each other, I'd immediately misread them as
Jack and
London, and I'd assume you really enjoyed
White Fang. However, I'd probably be alone in that. They're okay names (I prefer Landen,
Jackie, and
Jock, though), but I'd never use them.
Of your other names, I like
Summer,
Claire,
Luke, and
Noah together. Couldn't say why, as they're not names I'm particularly fond of separately.
Array
No matter when or where you've seen
All the knives seem to lacerate your brain
I've had my share, I'll help you with the pain
You're not alone