Bring Object forward or to the front
I have a illustrator file that has many objects and layers on it; I got it from iStock, but I've been manipulating it for my own needs. I would like to bring this fence (for example) which is comprised on many objects put together.
I can select it and I've tried Object>Arrange> Bring to front, but nothing visually happens. I have a feeling it has something to with a path or mask in these layers. Any ideas?

Here is a closer view of what is in the layers

