Since I've received a nice feedback from user Diego Liermann telling about several issues when updating Ancient Ruins to Unity 5.5.0, there is comming a hotfix update.
Now terrains, particles & materials look good as intended. Cameras and Fxs have been updated in demoscenes to look better with Cinematic Image Effects.
Character is still included but only in last demoscene (Ancient Ruins 1.3) and olders keep included using Free Camera.
Finally if you need this update quickly please send mail to support asking for it with your invoice code here.