Hmmm, 1st impressions, or seen something that left an impression, or even a footprint impression or car impression that hit a tree, , well not much impression on the tree that would be noticeable
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Not sure if this image 'fits-the-Theme', Feedback Wanted ? but one reject from a few 'fire-twirling' capers during a bongo-drum party left a unique impression from a night out !