A lot -- hair, textures, morphs basically. You should learn how to either use the integrated Package Manager to see what a package depends on, or how to check your package's meta.json or the actual saved scene for references to other packages.
In the saved scene you will find these references:
Meaning your look has direct dependencies to the following packages:
- Hunting-Succubus.Enhanced_Eyes.latest
- Roac.Winter_ponytails.latest
- AshAuryn.Pose_Tools.latest
- AshAuryn.Sexpressions.latest
- VAMJFD.FullMouthTexturePack.latest
Those packages are all Hub hosted as of today, so not a big deal -- and as long as they're still on the Hub (who knows if/when the will get removed for whatever reason) just open the Hub Browser and download missing dependencies, done.
But then you also got this:
Which is a package NOT hosted on the Hub, so you will definitely be missing these textures. And this package itself also has a lot of dependencies, that's why you will end up with a couple more non-hub-hosted dependencies.
Here's the full list of dependencies your package needs, extracted from the file "meta.json":