Photorealistic Black Cotton T-Shirt Flat Lay

1080x1080 pixels, square format 1:1 aspect ratio. Professional photorealistic product photography, top-down flat lay perspective. A blank black crew neck t-shirt with no design, no logos, no graphics, no text, no prints, laying on natural oak wood surface. The t-shirt is made of realistic soft cotton fabric with visible natural cotton weave and textile texture. The material looks like authentic worn-in cotton, not smooth, not shiny, not synthetic, not digitally rendered. The t-shirt fills the entire frame. The sleeve cuffs touch the left and right edges of the image—no background visible between the sleeves and the image borders. The collar nearly touches the top edge. The bottom hem reaches the bottom edge. Only tiny triangular corners of background are visible for props. The bottom hem is softly bunched and gathered, creating natural fabric folds and texture. A folded grey zip-up hoodie in the bottom left corner (60% cropped by frame), a pair of plastic sunglasses in the top right corner (50% cropped), a brass keychain with house keys in the bottom right corner (65% cropped). Soft diffused lighting from above with subtle shadows. 8K quality, photorealistic.