Pictures' rhymes with:
picture's, pictures, telepictures, picture's, pictures, strictures, telepictures, architecture's, architectures, conjectures, fractures, infrastructures, junctures, lectures, manufactures, picture's, pictures, punctures, restructures, strictures, structure's, structures, superstructures, telepictures, tinctures
Pictures' sounds like:
pasteurize, pasteurizes, pastor's, pastorius, pastors, pastries, pastures, pectoris, pesters, picketers, picture's, pictures, picturesque, posteriors, posters, postures, psychiatric