Glitchcore is a music genre as well as an art / editing style, for the art style of things, its got to be bright colours placed over some regular art OR place it into the art itself it give it more of a trippy effect. The goal of glitchcore is to make anything look irregular, it can be made from classical paintings to stick figures and it’ll make it look like a complete different piece.
Its difficult for me to explain glitchcore in a way without talking but i do think these images are best fitted to help understand glitchcore more.
Libby's Blog 