Are these Pokemon Base packs fake? What to look for?

Hi everyone,

I’m trying to figure out for these packs, but also in general if they are fake. I see conflicting info online on what to look for. Are there things someone should look for?

I know coloring doesn’t always mean anything, but the colors look right to me. The crimp seems crisp. The packs are in great condition. The seller claims the “found granddad’s attic” but has a over 500 ( 100% positive) reviews.
Looking for an experts opinion. Would love to buy these for nostalgia reasons, but don’t want to spend around $1000 for fake packs.

Incase I posted the pictures wrong: and

Thanks everyone.