--- clever idea to sew small tack stitches and then run thread through them. Easier to create complex shapes.
Flower embroidery day the round flower - Pumora
Pumora's embroidery stitch lexicon: the brick stitch, long and short stitch Más
Portuguese Knotted Stem Stitch Tutorial - this site has LOTS of lovely video tutorials for embroidery
Pumora's embroidery stitch-lexicon: the buttonhole bar Más