Dishonored mask hanging hook

I decided I wanted to hang my Dishonored 2 collector's edition mask. I designed and made this hook to go on the wall.
I've included a picture of the hardware I'm using.

Some printer PLA settings:
0.1mm layers
30% infill
2 shells
3 layer raft
0.30 separation distance
85% raft infill
6 top layers
3 bottom layers
(Simpfliy3D factory file included)


The plate (the part that connects the hook and the wall screws) fits into the cover plate (it's only purpose is to hide the screws) snuggly. I had to use an exacto knife to knick the corners of the cover plate (corners on its interior bottom where the plate goes in), and shave off a little of the top edge of the plate to make it easier to snap into the cover plate.
I also had to shave a little of the corners for the peg (the part the inserts into the mask) to make it slide on smoother.

I got as far as adding chamfers to the peg in the model before I got tired of all the trignonometry and moving floating rectangular prisms