Loose-Leaf Tie Guan Yin Oolong After Brewing
Spent leaves of Tie Guan Yin oolong, after steeping, are shown on the left, the brewed cup on the right. The greenish color of the leaf and the light golden color of the cup suggests to me that this is probably a traditional green oolong, i.e. low oxidation and only a slight roast, but more oxidized/roasted than the modern green styles which would produce a pale greenish-yellow cup and an even more vibrant green color to the leaf.
Note how tightly-curled,wrinkly, and jagged-edged the tea leaves here are. This isn't always the case, but sometimes this is a sign that the tea has not fully unfurled and there is still flavor left in the leaves, i.e. they can be resteeped one or more times.
