The only big difference is that I need to make neat sides. For this, I need a balsa strip. It is easy to work with balsa: you just cut it with scissors. The lolly sticks I also use for this project are hard.
It does not matter that there is a gap between the bits because I will cover it with another strip - a lolly stick.
While the sides were drying, I made the back. I was clever this time as used black card so I didn't have to paint it. Of course I still had to paint the inside. I didn't bother to glue in "stones" this time - I can alsways do it later. I already have a hearth for this fireplace. It is another piece of a plastic lid, and the fireguard is a buckle.
Then I painted the sides. I may need to use some filler to make them look neat. This fireplace will be in the reception room that I tested some days ago. I have not decided what wallpaper I will have in this room, but I wanted to see the fireplace with wallpaper, so I used a bit of a paper tablecloth I had saved from a party. It is not exactly the same colour as the wall, but it is all temporary anyway. The tablecloth is slightly embossed which gives a nice effect.
Now imagine: wallpaper, wall panels, rails, richly decorated ceiling, a chandelier, wall lights, silk curtains, paintings in heavy gilded frames. This will be a splendid room. I may use this old tablecloth for wallpaper.