As we stand at the very tipping point between summer and fall, the mood for reflection is in the air. Looking back on our feed this past week, a few things stood out above and beyond the fray. First up, artist Beatrix Ost joined Instagram, and a flurry of stylish age-defying selfies ensued. Shala Monroque made a splash in St. Lucia with a chic print-on-print scuba-diving look and photographer Phil Oh proved that you can blend into the background wearing a tropical floral shirt. See these moments and more in our weekly roundup.

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