The scene is when BD first sees the tree
containing the sealed "power?" which was the
result of her breaking the contract with Keichi
when she was a child.
Here's a comparable cel from Ebay that was sold a
few months ago. Although the reserve wasn't met,
it probably wasn't too far off.
Although Anime-Link's cel looks a little nicer,
it's up to each collector to decide whether it's
worth the difference.