Monde triangulaire et coloré avec ruines et débris flottants

a world made of a mosaic of colorful triangles, the upper part of the image is bright purple colors and the lower part of the image is dark red, in the background there are floating rubble and ruins, anime a girl with short dark blue hair and a big bun, blue eyes and mechanical pupils in black and white, thin black mechanical lines running across her face, a long black dress with blue ruffles and a long white plaid with dark blue buckles, white stockings with light blue lace, black elegant shoes,