close-up of swirling wood grain with dark brown and black hues

background wood grain texture brown dark black swirl pattern natural woodgrain surface abstract rustic detail timber grainpattern hardwood surfacetexture wooden nature organic lines darkbrown lightbrown abstractpattern organictexture wavy uneven rich depth beautiful woodveneer naturalpattern naturaltexture woodart wooddesign close-up swirling hues piece showcasing intricate swirls patterns shades black generative