The Reaper's Due Content Pack for Crusader Kings 2 is one of the few extra cosmetic DLCs you can purchase on top of the various expansions. It doesn't come with its related expansion, and its content has actually nothing to do with what the The Reaper's Due expansion actually adds.

This DLC unlocks portraits for characters of East African cultures, 3D models (these are the ones that show up on the map when you assign a councillor to a task in a specific province) for African councillors and also for female characters of Eastern cultures, and also new clothes for characters of Byzantine cultures when they reach later dates.

In my opinion the East African portraits are well done and a good addition, whereas the extra 3D models are hard to even spot, and the extra Byzantine clothes while okay are really niche because of the requirements and with portraits displaying only a character's head and shoulders there isn't much being shown.

As I said in other reviews the various Content Packs for CK2 don't offer enough for most people to justify their price and this pack is no exception. However on WinGameStore they are much more affordable, and if you're heavily invested in the game the ability to replace the ugly vanilla portraits is something you might want since that's what you're looking at for most of the time.