it would be an embellished crumb quilt- or a crazy quilt---
RULES??? there are no rules---if you want to embellish what ever blocks you make it is fine to do- and probably beautiful. crazy quilts often contain a variety of fabrics, but not always- often contain buttons/beads, laces, other fibers- but not always- often start with a 5-sided scrap of fabric other fabrics are (log-cabin style) added to on a foundation---but not always-
i know a lady who makes 6 or 7 string quilts every year- for her they are her crazy quilts-
there is no right or wrong- only sometimes different than what someone else does.