Validate design of a simple electronic circuit

This request is for a design validation of a simple (micro)electronic circuit with a 9V battery source.
The circuit/project includes the following components:
- NE555 Timer DIP8
- capacitors
- resistors
- potentiometer
- LEDs
- speaker
The project has been implemented and works on a 'breadboard' platform.
I need to have these two things validated:
a) validate my conversion of the 'breadboard' implementation to KiCad schematics
b) if needed, validate the KiCad PCB Layout based on the KiCad schenatics
Breadboard layout/description and both KiCad images/versions are available. Photos and videos demonstrating the functionality of the breadboard design are also available.