Soft Pastel Gradient Wallpaper Painting

Create a wide 16:9 digital-painting of a soft pastel gradient that fills the frame horizontally with gentle diagonal flow from the lower-left to upper-right edge. Keep the composition centered within the 16:9 crop, with the brightest tonal transition occupying the center third and darker anchoring tones in the left third to provide subtle weight. Render smooth, paper-like transitions between three pale hues—blush pink, powder blue, and warm cream—with a cool slate undertone woven across the lower left. Apply a restrained, even micro-grain texture across the surface so the grain reads at screen scale without visible speckle. Preserve a shallow sense of depth by softening edges where colors meet and keeping the farthest tones slightly desaturated. Leave the surface free of text, icons, or hard shapes so the gradient reads as a clean wallpaper field ready for overlay.