Hi Greenacres,
Most Chagalls that I've seen and recall (quite limited on the recollection side) have had crisper, very distinct outlines to the figures, but that doesn't mean to say that he didn't adopt a style similar to yours. The subject is very Chagallish. There is a Chagall museum ... can't recall exactly where in France, as it's been years since we visited it ... but you could always send some pics to them?