This is a simple resource pack that changes the eyes of the foxes from derpy to normal ones, making them look more intelligent!
(No, they won't get tophats and monocles! That's just an illustration of how smart, sophisticated and intellectually superior they are!)
The resourcepack only includes the two normal fox textures (both the regular and the arctic). Sleeping ones aren't modified, and therefore not included. It should work fine with any other resource pack.