Framed abstract canvas with coastal palette

I lost my framed abstract canvas this afternoon around 2:45pm. It's a 16x20 inch piece painted in blues, teals, and sandy yellows, signed 'M. Chen' in the lower right corner. The frame is whitewashed wood with a slim gold inner trim, and the back has a label that reads 'Mira Chen Coastal Series.' There’s a tiny coffee-ring mark on the back edge that I’d recognize, plus a faint dent on the top-right corner of the frame. I last saw it near the Brunswick Public Library on Maine Street, outside the entrance by Market Street. It has sentimental value to me; I’d really love to get it back if anyone found it.