spiderwebs on contrasting backgrounds with intricate, delicate patterns

spiderweb web halloween spider background abstract delicate nature creepy spooky black white eerie symmetry net gothic pattern minimal strands fragile autumn trap mysterious overlay network geometry insect webbing decorative design seamless texture digital contrast arachnid soft lines intricate transparent halloweentheme natureinspired thin threads natural art decoration structure mesh organic ghostly fantasy motif elegant spiderwebs contrasting backgrounds patterns