Sorry i can't help i didnt created props for games, i think you need a 3D modeler if the game is 3D or 2.5D.The statues should be easy to model by an advanced modeler if you need the obj statues.If you need only a 2D image i can say that you did some good job im not good on warping images but i suggest you to add shadow behind statue images.An image after a 3D model seen from above is more realistic than a 2D warped image but the statue from right side is so close to realistic, the only thing is missing is some shadows on the wall.As a beginner in modelling i'm learning/experimenting the 3D terrains.Have you tried the 3D option from Photoshop to project your finished 2d images on an object?

here are some free 3d statues 

http://www.3dcadbrowser.com/browse.aspx?page=1&category=12 maybe it helps (requires login to download)

Edited by cris333 on 02/07/13 11:46 AM.