50
\draw[save Hobby path=fish,thick, red] (3,-1) .. ([blank=soft]2,0) .. (0,0.93) .. (-0.93,0) .. (0,-0.93) .. (2,0) .. ([blank=soft]3,1);
52
\draw[restore and use Hobby path={fish}{invert soft blanks,disjoint=true},thick, blue];
48
57
\pgfpathmoveto{\pgfpoint{0}{0}}