original: Stieler began his career as a painter of miniatures.
simplifications: Stielers job started as a miniature painter. Stieler began his career as a painter of small objects. Stieler started as a miniatures painter. Stieler painted miniatures at the start of his career. Stieler began a career painting miniatures. Stieler began his career painting very small pictures. Stieler started out as a miniature painter. Stieler was a miniature painter to start his career. Painting miniatures was how Stieler got his start. Stieler started his career as a miniature painter.