As a sewist, this was definitely a technique I wanted to try!  I have to admit that it wasn't easy for me.  On my first attempt at the brush, I couldn't get the stitches to overlap, no matter what I did.  I finally deleted that stitch and drew a new one.  It looked just the same, but this time, it worked perfectly!  After that, it was smooth sailing.  I love how the masks work in the needle!  Super fun!  Now if only I could actually sew this nicely!