First, A. payaminonis has extended anterior dorsal fin lappets, although not as long as those of A. cacatuoides. A round average size lateral spot extends above and below the lateral band. Usually there is a secondary flank spot in front of the lateral spot.
Females have a ventral blotch similar to that seen on macmasteri-group females.
This means that it is a round fin except that the middle rays are squared off. Because of this the inframarginal orange band is cut off where the tail squares off. A. payaminonis is sporadically available in Germany through hobbyists, but it isn't very popular because it has less than spectacular colors. I have no idea what you have. I would need a more detailed description to really try to ID it.