Hi Mike,
I think Smylee is right, you need to lift the graver up more for the wriggle work. Your lines look pretty good but let me give you some advice about practice. Don't just cut lines and curves freehand. Draw a design on the metal and follow it. Mark border lines with a divider and cut them. Then cut parallel lines to that border, then thick and thin. The sooner you discipline your practice by cutting to a design, drawn line, or border the faster you will become a competent engraver. Because I don't engrave every day and sometimes have a month between engraving episodes, I always cut a small practice plate before starting a new job to refresh my skills. I always do 3 things. I cut a thick and thin border, I cut a perfect oval or circle, and I cut my name either in block letters or script. That gets me back in the groove very quickly and off I go. FYI, engraving a perfect circle or oval and a thick and thin border is more challenging than cutting Schipper's #1 design.
dave