I don't know why you didn't plaster the whole inside including ceilings? Wood paneling has a mad 70s vibe.
You could have used the cavity behind the plasterboard to trunk cables/hide all the wires from PC.
Plenty of space for your terrible jokes
How many cores is that SWA? It is far too shallow in the ground mate.
Screen needs to be about the same size as your curtains
Projector perhaps?
What have you done about insurance? Has the cave gone onto building cover and the contents on your home cover?
How come you have a bed? has it replaced your room where you sleep? I would replace it and make a bar and get a ping pong/pool table!
TV. BIGGER, DO IT.
Was going to say. All that floor space and no 5.1 or 7.1. Least he's introduced a subwoofer. Perhaps two? Hope you're getting 5.1 or 7.1 soon…