Sharing the details of the leaves of this beautiful Calathea pinstripe. Its underside is a deep red purple or maroon-ish. You could see through the white pinstripes on the surface of the leaves which are like thin, delicate brush strokes. ^___^ This plant loves humidity, medium to bright indirect light and I only water once a week.
Thank you for all the generous tips Olga @interiorplants.ca .