Analog power rails should be decoupled against AGND
According to the ERTEC datasheet the analog power rails like P1V2A, P1V5A, and P3V3A are referenced against AGND and should be decoupled against that.
Related to this, the AGND plane should extend above (or below) anything referenced to it to provide a return path. Here, this would mean that the AGND pour has to cover the pours for the analog rails mentioned above.