Turquoise abstract canvas with gold frame

I lost my turquoise abstract canvas yesterday around 3pm near the Riverwalk Arts & Entertainment District on Las Olas Blvd in Fort Lauderdale. It's an 18x24 inch acrylic on canvas with a distressed gold frame and a small coffee splash on the back. The piece is signed in the lower right by 'M. Rivera' and has a faint pencil sketch of waves in the corner. It was a gift from my sister and carries a lot of sentimental value, so I’m really hoping someone turned it in.