

I have never done these type of repairs before so wouldn't know where to start?
The top pic is in the lounge area. A large painting was attached to a piece of metal frame which I removed and this was the end result.
The bottom pic is in the bathroom but I have no idea how it got that way.
These are repairs to be done pre prep before repainting.
I have sanding blocks, a pole sander and spakfilla. Not sure if any of these things will be useful in the repair?