Harper began as an English occupational surname for someone who played the harp, and it carries that craftsman's association into its use as a first name -- skill built through practice, not luck. The name is often linked with resourcefulness and a hands-on kind of creativity rather than passive artistry.
For domination use Mars, because it has influx and quick response in this and other aspects, and it means renovation and growth. - Picatrix (Andalusia, ~1000.AD)