The freaking weathered effect on the freaking added text and the freaking mail logo is freaking great and freaking well suited for your freaking image. I know that the source image is also showing the background through the top opening but I think it would look better in your entry if the you were to enclose the back so that it looked like the mail slot was only accessible from the front. Use a similar red metal finish but much darker to represent the interior of the box. Maybe blur the vertical edges of the supporting post too so that it is not so sharp. Other than that, it is Freaking great.
Thanks cOOper, for your comments & suggestions. I don't think I did it quite like you proposed, but I think enclosing the opening more, makes it look much freaking better. Thanks again, I always appreciate a constructive freaking critique.
It was a Freaking pleasure What you have done, looks fine. Maybe just adjust the bevel to a smooth edge so that it not as pronounced and it will tie in better with the smooth, rounded sides of the box.