Abandoned passage

Hi guys,
I recreated this scene from real world environment, mainly on learning purposes to create realistic, attractive space. It is sort of finished but maybe i should add protagonist to it(e.g. some cat in the grass with inquiring look to the camera)?

Hope to hear some response and ideas for improvement. :confused:

01_passage by manatss2000, on Flickr

03_passage by manatss2000, on Flickr