back with the eyebrow screen grabs ..
but first, brush settings ...
using a canvas size of 1000 x 1000 .. i painted a single strand ; defined it as a brush preset , played around with the settings and did a little test as well ...
later i created a second variant and tweaked the settings a bit ...
you must tweak the settings to get the desired result, however, even using the brush is a different thing altogether ... again as mentioned before .. experimentation is the key
the paint process ;
i start off with brush variant 2 ( picky

) as i paint, i resize the brush whenever necessary
then build up with more strands .. ( looks quite a lot now )
later, i decided to use a mask, to get rid of some of the extra strands.
started using the other variant with a slightly darker color
building up ..
some shadowing ..
shading other areas to bring it all in ...
i hope that helped ...
more details will be added along the way ...