Secret Rare Zekrom: Two Holo Variations

Every set has multiple print runs, and it seems that in the case of Black & White, secret rare Zekrom is available in two holo styles depending on which print run your booster pack is from. It seems that for the first print run, the background of the Zekrom card allows the reverse holo to show through, while for the second and later print runs, the background is opaque. Thanks gos to Omahanime for the comparison scans below; click them for larger images.