Prompt:

astronaut walking through a decayed megastructure overtaken by alien vines, charcoal illustration with sweeping shadows and tangled organic forms, grayscale with green accents --ar 4:3 --raw --v 7.0

宇航员走过一座被外星藤蔓占据的衰败巨构，炭笔插图，带有 sweeping shadows 和纠结的有机形状，以灰度为主，带有绿色点缀。