earth-toned abstract 4k background with a grainy texture, blending rich shades of brown, amber, and olive, featuring geometric

background grainy wallpaper blur banner backdrop brown amber olive gradient abstract template geometric stripes lines shapes triangles vectors rays texture highresolution digital art modern creative design artistic smooth blend color transition earthy minimalistic contemporary aesthetic warm tones seamless trendy elegant rustic stylish earth-toned blending rich shades featuring perfect backdrops