feathers and blossoms

created with this tool, using the following parameters:

 

line length: 10

line scale: .9

line width: 1

line taper: 1

color: 000000,111111,222222,333333,444444,555555,666666,777777,888888,999999,aaaaaa,bbbbbb,cccccc,dddddd,009900,990000

angle: 5

angle increment: -2

iterations: 6

start: F

grammar: F:!F+[F+[F+[F+[F+[F!F]+F]+F]+F]+F]+F--!

Done