I've done some research and I can't find any pics for the Costume Pack 2. As for Costume Pack 1, I found out it contains a red riding hood and warrior outfit for Sheva and Chris.
Pics for RE:5 Costume Packs?
This edit will also create new pages on Giant Bomb for:Beware, you are proposing to add brand new pages to the wiki along with your edits. Make sure this is what you intended. This will likely increase the time it takes for your changes to go live.