abstract poster with boho arches, with lines and semicircles, in cold winter blue colors, for interior wall poster

abstract arch art artwork backdrop background banner blue boho bow card cold color colorful concept craft curve cute decoration design element flat flyer futuristic geometric graphic interior label line minimalist modern monochrome nordic poster print rainbow scandinavian semicircle shape stripe style template texture textured trendy vector wallpaper white winter arches lines semicircles colors wall poster minimalistic style