"Create a minimalistic, vintage-style image featuring a perfectly aligned grid of checkered squares in the center. The pattern consists of alternating soft green and off-white squares, with each square slightly irregular to give a hand-drawn, organic look. The grid is positioned in the center of the image, with a neutral, off-white background. The checkered pattern extends evenly across the canvas, with sharp, clean lines but a subtle texture that suggests a slightly rough, paper-like surface. No additional elements surround the grid. The color palette should primarily feature muted tones of green and beige, with no gradients. Lighting is soft and even across the entire scene, creating a serene and calm mood. The aspect ratio should be portrait (1024x1500), with high resolution for clarity and sharpness. Exclude: No text, no watermarks, no digital effects, no bright or saturated colors, no 3D elements, no blurring, no glossy or shiny surfaces, no pixelation, no cartoonish features."