Small abstract canvas with turquoise wave

I lost my small abstract canvas painting yesterday around 3pm near the Empire Arts Center on 1st Ave N in Grand Forks. It’s a 12x16 inch stretched canvas in a black wood frame, a bit scuffed along the bottom edge, with muted blues and gray and a bright turquoise wave in the lower-right corner plus a bit of gold leaf catching the light. On the back there’s a tiny round sticker that reads 'Lena Studio'—easy to spot if you flip it over. There’s also a small dent in the bottom left corner of the frame from where it toppled off a bench. It was a gift from my aunt and has real sentimental value; I really need it back.