the square frame sheet of white textured paper on tblue green wall background. mockup with an overlay of plant shadows. natural

shadow mockup overlay art artistic backdrop background leaf black cardboard display menu portfolio a4 botanical above leaves gray grey flat lay botany color concrete dense effect environment exterior flora floral garden light natural nature nearness petiole plant proximity reflection shade shadowy sun sunlight sunny sunshine tropical wall wallpaper poster square frame sheet white textured paper tblue green shadows blue casts tree happiness top view