The classic crewel embroidery, also called Jacobean embroidery, has some very interesting fill stitches and stitch combinations, which can be used wonderfully for free embroidery. Here is the book with more than 27 filling stitches + variations and 12 leaf variations for your textile art ideas. And if you are interested in such a sampler, It is a pleasure to embroider these patterns as a sampler, because the embroidery areas are small, the patterns are varied, you can play with colours and yarns as you like.