That looks fantastic!

When I was growing up, we used to line the bottom of the oven with aluminum foil. I always hated it because it never seemed to lay flat and got crinkly. A year or so ago, a friend of mine turned me on to these fiberglass* oven liners, and so far I love it! [nb: I originally put asbestos instead of fiberglass and I don't know where my mind was when I typed that! Sorry for any confusion.]

There are two things to pay attention to. If you get one, check where to put them; it varies between types of ovens. And it's only temperature-safe to 500°, so check what temperature your oven's broiler is.

The same company also makes silicone oven rack guards - little silicone rods that you can put on the front edge of your oven racks and prevent you from burning yourself. Those are only safe to 446°, though. I taped a note to my oven temperature settings, reminding me to remove them if I ever went higher; and to remove both of I ever used the self-cleaning function. Fortunately, I haven't needed to since :)