They may work on the big head, but I've not tested it. This brow works beautifully with my Vodka series and Nyma's Snow Dream series.

I'm opening this up for deriving since it was quite annoying to try and figure out how to do a thinner brow on my own, so I figure others could use a little help with this! Please note that you'll need to set your color texture to 128x256 to work with this opacity map. Also note that this only works with Head 4. You can wear it on other heads, but it looks kind of weird. Use and derive at your own risk.