There we go. The look is changing instantly.

I will now continue with texturization.
I' will create a new layer and use any rusty big diameter brush.























And of course I've used some layer styles to change the look of the rust. I want to make it less solid.

Note that the opacity and fill are at 100%. We are gaining the effect of less solidness through gradients and another texture in bevel and emboss section.

So now goes another layer. I will create a shadow from something that stays somewhere there and not in the picture.