At first glance, I thought the feather was mid-air, falling through the the picture. But no, not with a pinhole camera . If that was the effect you're looking for, then: well done, it really adds another dimension! If it wasn't intentional, then the feather may be a bit "disturbing" to the overall photo.
The feather apparently falling through the picture is eye catching until you realise a pin hole camera might have some problem with capturing it. Now the feather becomes the dominant factor in the picture to the detriment of the remainder of the photo.