This is satin stitch with a little embossed or dimensional look. This is because we first give the pattern a little padding at the base before doing the satin stitch.
How to do the Shell Stitch - Sarah's Hand Embroidery Tutorials
Hand Embroidery for Beginners: Make Beautiful Embroidery with 12 Basic Stitches — with printable patterns, tips, techniques and more (Sarah's Hand Embroidery Tutorials) - Kindle edition by Koll, Juby Aleyas, Koll, Roxy
How to do the Surface Satin Stitch - Sarah's Hand Embroidery Tutorials
How to do Basque Stitch - Sarah's Hand Embroidery Tutorials
How to do the Surface Satin Stitch - Sarah's Hand Embroidery Tutorials
How to do Padded Satin Stitch - Sarah's Hand Embroidery Tutorials
How to do Cross Stitch (Traditional method)
How to do Weaving Stitch - Sarah's Hand Embroidery Tutorials
How to do the Satin Stitch - Sarah's Hand Embroidery Tutorials