I believe it's plasterboard, what items (with links preferably) do I need to screw them please.

It looks like this roughly - picture which is not far off from @Noyade's sketch

Thanks. The camera base covers the hole. Is there a video on how to use the expanding toggles to fix it around here?

How do I screw a camera to cover the hole in the picture, the cable will be connected to the camera. What's the best way to go about it including requ ...

Also link to the sanding block is not working, can you please resend?

Thanks, do I use same paint for exterior for the interior and winder as well?

Please how can I repaint window frame here including metallic winder white colour. Thanks