It’s very difficult to make out any of your resistor colour bands even zooming in, you’d need to take a well lit picture without your hand covering some of the pcb so that colour bands can be clearly seen and all wiring traced
I can’t see most of your resistor 4th multiplier bands it’s difficult to see whether they’re brown, red or orange etc
Have you tried reflowing the IC socket solder joints
What voltage readings do you get on the IC pins and TR2 middle pin
Your soldering does look good but there’s always the possibility of a dry solder joint even if they look nice and shiny especially if they look ball like, they could be dry inside
Just a note when audio probing you don’t always get a good connection with the probe I’d usually always check beyond where audio stops you’ve got audio at the IC input pin 3 and nothing on the output pin 1, I would normally check the input pin 5 just to make sure