Thanks for the compliments everyone

I put the first coat of Quikrete on today and I also added a bottom piece to create an "L" shape. I don't want this to be a permanent background so I added the piece to the bottom to give it support and the substrate will go on top of it. I

This background is going to be for my biggest pacman, Appa. I'm hoping he will enjoy burrowing in front of it, lol.