Could you give us some more details?
I don't understand what has several layers. Do you mean there are several layers in the image, or do you mean that the shadow or the wall has layers?
Is "...wall e that..." a typo, or are you describing a letter 'e' that stands up like a wall? If you have an image you could insert or upload, you know they say the picture is worth a thousand words
I'm trying to think of some general steps I could offer, but I'm sorry that I just don't understand the problem well enough.