Validation of power supply decoupling and oscillator connections in a PCB
If you have a four layer board, you presumably have a VCC and GND plane, which means that you would be better with a VCC via and GND via at each power-pin-pair/ decoupling cap.  (The capacitor placement looks OK though)

Then get rid of almost all that VCC/GND tracking.

Don't worry about minimising via-count, if that was what motivated your design above.