Instructions:
Finally, and yes, we're at the last couple of steps now, add a few more 'obvious' strands that fall across entire sections of hair. If you skip the previous step because it's just too much into tiny details that you feel you don't need, at least don't skip this one. It really, really adds to the look of a hairstyle with a few of these playful locks.

The trick here is to make it seem as if they're actually escaping from a larger lock of hair and just sort of floating out across the rest of the hair, perhaps tugged away by the wind. To add to the effect, a very faint shadow from the strand might fall across the rest of the hair, just making it more visible and also enhancing the appearance of it flying free.

Common mistakes:
Unless it's windy or you're painting a wild-haired person, these 'errant strands' won't be that many, that obvious or that big. This is one of those discreet kind of touches that really makes a picture - but like all those kind of touches, it can also break something.

And now you're done, and I hope it was a little helpful :]

I'm going away over the week again, and just wanted to drop this by you guys in case you have some vacation time to spare for painting. Enjoy, have fun, and I hope you're having a gorgeous summer so far!