lite brites - for big people

i think i may attempt this for behind my couch or above my bed. i like the idea of alternative light sources & i think it is big enough without being completely obtrusive to the space. it seems to be simple and fun; it just requires one canvas, paint, mini lights & some craft glue. my only concern will be the quality of the final project, will it look shotty?

the tutorial is featured on martha stewart's site.