Hey, they look very nice. 
There is one thing though I have to remark:
On other people’s cover I could sometimes realize that the opening around the camera may look as a perfect match. But when taking a picture the flash light actually is still partially blocked by the cover not providing the full light shape as it would do without a cover. Users often don’t realize by themselve until I mention it and show the difference in the picture’s uneven light illumination.
This should be taken care of and if necessary corrected.
Furthermore the flash light effects an entire 360° circle.
Flatten the material around the camera may help or keeping the aperture slightly bigger than the camera part would help too.
Just an idea.