'A Body of Work'...  One of those expressions that pops up in art contexts all the time. Laura and Peter unpick what it means.  It can be whatever you want it to be.  A group of pieces linked thematically, stylistically, chromatically, progressively or anything else.  A collection that will allow you to be assessed maybe, by a gallery or a prospective client. Certainly a way of showing your exploration of  your work - and that has to be a good thing!