Since you’re new you might not know that you can edit and/or delete your posts if you have reconsidered them. There’s a little pencil icon under each post, it’s super easy.
It seems like a bit of a rocky start for you here, but I hope it hasn’t put you off. We really like new people and value everybody’s creativity. I hope to see pics of some of your projects on here, I’m sure you have something to bring to the community.
The left half seem to be mirrored acrylic, so the reversed file engraved away the mirror film on the back of the acrylic. The right half is wood, and that wood is painted around the engrave.