The datum target indicators look a little bit confusing. A1 and A2 look like they are really on the upper edge. It would not be a subject for rejection of a drawing which is ready for release but as you have to do the CAR-checks anyway please modify like shown below. (Generally it is better to show the side of the part on which you find the datum targets but that is not mandatory.)I think this should be a parallelism back to datum A. I think that the planarity could be understood in a similar way because of the “CZ” but formally I think it is not clear because the 2 surfaces are not in the same plane. If this drawing is going to a supplier the current callout may lead to discussions.