Can you please be more specific?
Using the kindest words that I know, If I was an electrical inspector in your area and saw this you would have 30 days to correct or lose power until it was.
I highly recommend that you hire a licensed well established electrician to make repairs and to do this soon
All I can see is the picture but that is enough to make me wonder just who did this and what might be behind what we can’t see.
Someone removed a flush mount panel and reinstalled one surface mounted. There are exposed nonmetallic cables entering a hole above the panel that must be fished down the wall. This is enough to tell me someone has added circuits. If they did not have enough pride in their work to do any better job than they did with the panel then those new circuits must be one cluster ****.
Being everything in the picture is #12 it reflects the mindset that they feel they have done something fantastic as everything is now better when reality it isn’t.
By the way the pipe and flex you installed is not strapped down as it is required to be.