More than a year ago "Carnage" started a project of taking screenshots of every available decoration in game. While our list is not complete (some recipes we are still yet to find while some others seem to be unavailable in the game) we decided to make it public and players can access it from our forum site at Decorations Archives
We hope that our Archive can help others decide what decorations they would like to build in their city (especially guilds/players with short amount of resources available). If anyone wants to use our screenshots please feel free to do so. Bear in mind that from time to time the screenshot links may change. The only link that is guaranteed to remain unchanged is the main list link as shown above.
Any updates with missing screenshots will be posted in this thread.
References:
Architect Recipes - Missing Info!
Crafting Spreadsheet - Renown / Mats / Locations and Spreadsheet